Hi Vicious.
First my friend, you need to turn one of your Firewalls off.
I would generally say, turn off W-XP, But knowing the problems with Macafee
at present, (Incompatibility) issues, I leave the choice to you.
You must turn one or the other off. then configure the remaining one to allow
LimeWire to pass through.

Next we need the model No's of you router, ITS a MUST, look on the side & it
should be there eg... "Model DSL-504T" or similar.
Have you made different static IPs n portfawarded for each computer ?
Use a different listening port for each L/W app.

__________________
mickjapa108