OSX user...can't connect worth anything! :'(

Hey all...I've been reading the possible fixes for the connect probs and I have tried them all and nothing! I'm so frustrated!

I'm using mac OSX version 10.3.5

I can open it and it has the lil green bar that constantly says 'connecting' occassionaly it will go up to 'poor' for like a second then back down to 'connecting' although obviously i never can do anything.

I've tried deleting preferences, unchecking tips, etc. etc. and gone into system prefs making sure the port was available thruogh the firewall. I dunno...I need some serious help! If anyone knowing bout this prob. on mac osx could shed some light on this i'd greatly appreciate it!!!
thanks!