here is the info that i know:

OP is Windows XP
I have Firewalls enabled, but I followed the steps to free up Limewire(Gnutella)
Ram is 512 MB
Free space is 47.69 GB (which it said that 85% is free)
use dialup through the University of Toledo and other computers share same connection
accessing it from home
Versions: LW - 4.10.5
Java - 1.4.2_05
no router, but don't know what you mean by modem: if it means what kind of computer it is a Compaq Notebook Model: Presario R3000

Then i tried to delete the file that you listed, but could not find anything in my search engine that had Application Data in the details so i did not delete anything. Let me know if you need any other info and hopefully this helps