I have been having problems with vmware too, I saw awhile back
that someone posted the same thing that I was getting but I dont think
there was any responce, but im not sure. after loading vmmon and
trying to run vmware I get this error message:
VMware Workstation Error:
Version mismatch with vmmon module: expecting 30.0, got 10.0.
You have an incorrect version of the `vmmon' kernel module.
Try reinstalling VMware Workstation.

I really have no clue and would really like to use vmware on this netbsd box
NetBSD reeses 1.6T NetBSD 1.6T (GENERIC) #2: Mon May 26 16:10:49 EDT 
2003  adam@netbsd:/usr/src/sys/arch/i386/compile/GENERIC i386

total memory = 511 MB
avail memory = 467 MB
using 6144 buffers containing 26292 KB of memory
BIOS32 rev. 0 found at 0xfdb10
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: AMD Duron (686-class), 1000.13 MHz, id 0x670
cpu0: features c3c7fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features c3c7fbff<PGE,MCA,CMOV,PAT,PSE36,PN,MMXX,MMX>
cpu0: features c3c7fbff<FXSR,SSE,3DNOW2,3DNOW>
cpu0: I-cache 64 KB 64b/line 2-way, D-cache 64 KB 64b/line 2-way
cpu0: L2 cache 64 KB 64b/line 16-way
cpu0: ITLB 16 4 KB entries fully associative, 8 4 MB entries fully 
associative
cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries 4-way
cpu0: 8 page colors
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: VIA Technologies VT8363 KT133 System Controller (rev. 0x03)
agp0 at pchb0: aperture at 0xe0000000, size 0x10000000
ppb0 at pci0 dev 1 function 0: VIA Technologies VT8363 KT133 PCI to AGP 
Bridge (rev. 0x00)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga1 at pci1 dev 0 function 0: Nvidia Corporation RIVA TNT2 Model 64 
(rev. 0x15)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
pcib0 at pci0 dev 7 function 0
pcib0: VIA Technologies VT82C686A (Apollo KX133) PCI-ISA Bridge (rev. 0x40)
pciide0 at pci0 dev 7 function 1: VIA Technologies VT82C686A (Apollo 
KX133) ATA100 controller
pciide0: bus-master DMA support present
pciide0: primary channel configured to compatibility mode
wd0 at pciide0 channel 0 drive 0: <WDC WD300AB-00BVA0>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 28629 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 58633344 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
pciide0: primary channel interrupting at irq 14
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using 
DMA data transfers)
pciide0: secondary channel configured to compatibility mode
pciide0: disabling secondary channel (no drives)
uhci0 at pci0 dev 7 function 2: VIA Technologies VT83C572 USB Controller 
(rev. 0x1a)
uhci0: interrupting at irq 10
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 7 function 3: VIA Technologies VT83C572 USB Controller 
(rev. 0x1a)
uhci1: interrupting at irq 10
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: VIA Technologies UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
VIA Technologies VT82C686A SMBus Controller (SMBus serial bus, revision 
0x40) at pci0 dev 7 function 4 not configured
rtk0 at pci0 dev 9 function 0: RealTek 8139 10/100BaseTX
rtk0: interrupting at irq 10
rtk0: Ethernet address 00:50:bf:65:17:80
ukphy0 at rtk0 phy 7: Generic IEEE 802.3u media interface
ukphy0: OUI 0x000000, model 0x0000, rev. 0
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
lpt0 at isa0 port 0x378-0x37b irq 7
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
isapnp0: read port 0x203
wss1 at isapnp0 port 0x534/4,0x388/4,0x220/16 irq 5 drq 1,0
wss1: Crystal Codec WSS/SB: CS4236B compatible
audio0 at wss1: full duplex, mmap
opl0 at wss1: model OPL3
midi1 at opl0: WSS Yamaha OPL3
joy0 at isapnp0 port 0x200/8
joy0: Crystal Codec GAME
joy0: joystick not connected
isapnp0: <Crystal Codec, CSC0010, , CTRL> port 0x120/8 not configured
isapnp0: <Crystal Codec, CSC0003, , MPU> port 0x330/2 irq 9 not configured
Kernelized RAIDframe activated
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)


Type    Id   Offset Loadaddr Size Info     Rev Module Name
DEV       0  -1/103 e3cd4000 0004 e3cd4260   1 linuxrtc
DEV       1  -1/99  e3f77000 0014 e3f7b200   1 vmmon