1. OS version? (eg: Windows 98)

vista

2. What firewalls you have?

windows firewall

3. How much ram?

2048 DDR

4. Hard Disk space available?

300 + gigs

5. Connection type? (eg: dialup, broadband, cable, etc.)

wireless
Xplornet Internet Services | Xplornet Services Internet

6. Modem & router brand name & model numbers?

D-Link DI-604

7. Where are you trying to connect from (house, appartment complex, school, student accomodation, work, etc.)?

Home

8. What version of LimeWire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version.

Limewire 14.14.10
Java 1.6.0_01

9. Who is your ISP (Internet Service Provider)?

Xplornet Internet Services | Xplornet Services Internet

10. Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there?

It says ' Your test worked!!'

11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up.

Nope

12. Is this a your 1st try at LW or is this a new problem with an experienced user.

This is my first try.

13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? _ click here to see Sample image

Yes

14. For those using a modem/router, how is your modem/router set up...are you port forwarding or is UPnP enabled?

UpnP is enabled
and
Using Port Forwarding

15. What security programs are you using (antivirus etc)? Some people might not be aware that their security suite includes a firewall

AVG Free Edition
No McCafe

16. What country are you living in? Sometimes there are ISPs with the same name in more than one country (eg Clearwire in the USA & also in Ireland).

Canada

First of all, make sure that LW's being allowed through the Windows firewall.

Try updating your Java to the latest version. Download the JRE offline installer & remove any other Java versions on your computer, before you install the new one.
Java SE Downloads

When you set up port forwarding, did you use these instructions?
Port Forwarding for the Dlink DI-604
Did you make sure to set up a static IP address on your computer first (there's info about how to do that in the instructions above)? Also, make sure that LW's listening port, port in the 'manual port forward' box & port forwarded within the router are all the same number

Xplornet are known to throttle bandwidth for p2p but a few other people have had connection problems as well. Most of those had satellite connections though, so I'm not sure about wireless.
You could try changing ports. In LW tools > options > advanced > firewall config. Change LW's listening port to something in the range of 49152 - 65535 (eg 65000) > apply > ok. If you change ports, you'll also need to change the port number forwarded within your router's configuration.