In the Advanced/Forwarding section of your Linksys router did you add the ports to the port triggering section where the apply button is?
BTW I use MSN to send files and recieve without a problem with a 1 port Linksys Router and no ports configured. With firmware 1.40.2
Originally posted by Ratman2
nothing seems to work...according to linksys MSN Messenger and NAT do not get along at all