Shoutbox

I've searched and read all i could and i couldn't find a solution to my problem.

i have msg plus live 4.9 and the WLM 2009 and it works just fine, but everytime i start it, says that there is a new version of msg plus available... so I press the update button, and it seems to be download but when the installer begins it just stays in blank and does nothing! it doesn't even let me shut it down!  so I have to force it to close, i am tired of it.
I try to download it by myself from this web to see if something changes but it happens the same. what can i do? i really want to have the last version
i hope there is a solution..

sorry for my english if is not so easy to understand.. im chilean