PLEASE help me (1 connection bar)

1. windows xp pro 2002 s2p
2. windows (the only one I could find)
3. 768mb
4. 9457mb
5. broadband?
6. linksys cablegateway # befcmuh4
7. home
8. limewire 4.14.8 java 1.6.0_02
9. roadrunner?
10. test worked
11. other computer connected by cable to modem/router. other computer
rarely used
12. have used limewire many times in past w/ no problem. now can't get
more than 1 connection bar
13.brick wall is showing
14. I have no idea & all posts I've tried to read to find out have been
greek to me
15. Norton AntiVirus - can't find anything about a firewall included -
have limited coverage - no option for "exceptions"
16. U.S.A.
I swear I've spent HOURS trying to fix this on my own, trying to understand all the posts to try all the solutions. I admit I'm not the most computer literate person. So, all solutions have to be totally step by step. PLEASE, PLEASE, PLEASE HELP ME! This is me today
Thankyou

Make sure that your XP firewall's still allowing LW.

Some people have had connection problems with Java 1.6.0_02.Try this version instead. Use the JRE offline installer & remove your current Java version(s) before installing this one.
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11

If that doesn't help, If that doesn't help, delete LW's preferences folder when LW's properly closed. See point 2 here & also point 3 if you've used newer versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later.

I can't find any info about whether there's any sort of firewall in that gateway Were you using that device before, when LW was connecting??