Ok I have a FreeBSD 4.2 or a closer version installed on a PIII 450 with 256mb ram and the box acts as a gateway for my 1MB broadband. Problem is from my Windows XP box I can not send files through to the other person, (using MSN) but I can recieve them. I have checked out all of the firewall config files and can not seem to find the problem.

Any Ideas?