Your Java is out of date! You should update it to either
version 1.4.x OR
version 1.5 (take the JRE)
By the way I'd guess not many people upload from you because you have a modem with an internal firewall. Have you forwarded port 6346 for it? If not see
Speedtouch 530 port forwarding & use port 6346 & static ip. That's if you want to.
I also presume your firewall is configured to allow LW full access?
ZoneAlarm instructions
LW 4.4.1 also overcomes some bugs that were in LW 4.2.6 :
http://www.limewire.com/english/content/download.shtml