Try giving the tips in this Sticky a try as something in your limewire may of become corupted when you had the virus....
http://www.gnutellaforums.com/connec...t-connect.html
If that doesn't help try Port Forwarding your modem/router as it has a Nat Firewall within...these are your instructions...
Port Forwarding for the D-Link WBR-1310
Have you tried to uninstall antispyware via your Start > All Programs...
The uninstall option may be there....
Here's some reliable free protection...Just make sure you only have one AV program though as if you have more it can cause conflicts and leave you unprotected...You can have as many Anti-spyware apps as your want, the more the better as they all pick up something different...
Anti-virus: avast! AVG free Avira Antivir Antispyware etc: Ad-Aware __(FREE) Spybot - Search & Destroy __(FREE) AVG Antispyware (formerly Ewido)