Well, you're screwed if you don't let us help you.
Can't you answer any of those questions? It's up to you if you don't want to bother, but if it was me...I'd at least have a go.

I have Sunbelt kerio personal firewall, cable modem, Limewire 4.12.6 and windows 98.

Where are you connecting from (house, apartment block, school, student accommodation, work)?
Who do you pay for your internet use (that's your ISP)?
Have a look on your modem...what's the brand and model number? Have a look underneath the modem as well.
How many green connection bars do you see in the bottom left corner of LW?
Do you see the firewall icon (brick wall in front of the blue globe at the bottom of LW)?
What happens when you try to go here (click on the link) http://www3.limewire.com:6346
Are any other computers connecting from the same place that you are?

House
Time Warner Cable/Roadrunner?
Toshiba
5 bars
Yes, brick is in front globe
The link won't load/operation tmed out
No other computers.

BUMP

Can anyone help me?

Have you made sure that LW's allowed through the Kerio firewall?
What is the model of your modem/router?

You said you have 5 green connection bars, so the problem's probably either with your software firewall, or there could be an internal firewall within your modem/router...we can't find that out unless you give us the model.

Nevermind. Limewire is working just fine now and the brick wall is still infront of the globe.

Go figure.