where can i find some RSA description for dumbs ? ;)

at least info enough:

a) how to load text/binary representation of key from file (private/pub
key)
b) how to encode/decode some data bytes with RSA

and most inportant - how long should/can be encoded data and RSA key,
etc.. for that algoritm to be really safe.

i have to use some routines but i like to understand how it work to not
create security holes ;)