this is SLEEK, the design and GUI are awesome.
all the icons are in there, your image doesn't disappear when invited to a group convo, text doesn't bunch up, blocked contacts actually show as blocked, and many more fixes
the only issue i can see is that it thinks your busy even when your typing in a msn window.
easily fixable of course
Download with the link below
WLM 8.0.0683_Branch Beta
follow this link if you haven't already been invited to the beta or havent validated your hotmail/msn account
Sign up / Validate your accout
Follow this link if you want A-patch, this patch enables features like poligamy (having multiple messenger processes open at once)
Apatch
WLM 8.0.0683_Branch Beta 
