yellow light

hi im new having problems with bearshare lite 5.2.5
been a user of bearshare for years but just bought new laptop and having
loads of connection problems
ive a yellow light on me firewall i have been to port forwarding and opened a port and ive got my firewall configured
but still its yellow grrrrrr im using bt home hub and onecare windows virus
protection / firewall on windows vista im usually pretty good at doing this as ive always set everything up my self but i need help want all green lights lol so please if anyone could talk me through what im doing wrong that would be fantastic

Set it up to use a different port number.
Right now it's probably trying to use the same port as the first computer.

Once you picked a new port number, do the port forwarding again.