Grooveshark help .. please

I have a few plugins that I enabled in XBMC. So my first question is my XBMC do I use the regular Grooveshark plugin or the one that says Grooveshark for XBMC? 2nd question and yes I know it sounds stupid but I am not sure why I can not connect to any thing when I run grooveshark. I am thinking maybe I am putting in my user name wrong. Could someone tell me if in XBMC add on setting its the actual grooveshark full user name :http://gooveshark.com/username" or just the username with out the http:... I just can not figure out why I can not get it to work... Thanks for the help!!