> 
>     Two questions:  First off, how do I write to files in NetBSD?  Whenever
>     I try to do anything useful, I get a message saying "read only file
>     system".

See:
http://www.macbsd.com/macbsd/macbsd-docs/faq/faq-5.html#ss5.4

>               Another question is: Is there a way to connect to an ISP w/ a
>     modem through NetBSD?  (Using SLIP or PPP).  I looked in the manual for
>     help w/ SLIP, but it was completely unhelpful.  Bye.

See:
http://www.macbsd.com/macbsd/macbsd-docs/faq/faq-8.html#ss8.2
or
http://www.macbsd.com/macbsd/macbsd-docs/faq/faq-8.html#ss8.3