I'm having problems with my webcam mikomi ap-7120 which I bought today. It will not work on any version of msn, i have tried 7.5 and windows live messenger newest one. I'm wondering is this something to do with this specific webcam or are no webcams working on msn at the moment? Please help I want to use it when I chat to my family as I dont get to see them. 

anyone? please help its really starting to annoy me that it wont work

I've really never heard of this specific model but it probably uses some kind of software implementation program "in-between" such as special effects, soft zooming, subtitles etc (it's not directly hardware connected to MSN)
Try uninstalling ALL programs related to your webcam and reinstalling ONLY the webcam drivers if possible.... if this doesn't do the trick there are alternative (but slighty more complicated) solutions... so keep us updated if you still have problems