Never used MSN or any IM so...
Without any other info such as what it is or isn't doing I would ..
Run the latest Windows Service Pack as Active x install tends to overwrite stuff.
Check the MSN site to see if they recommend/support Active X ver 8.x
Maybe they have a patch.
Is there any Software to reinstall for the MSN IM you can try ?
If that doesn't work the only other thing you can do is to
take some Pic's of your Legs and post them...