If your webcam is V4L1 (I believe that is what it was called) then gyach enhanced might be something for you.
I have installed it on my system and it runs beautifully with a regular Yahoo user. Both sending images and receiving. Only downside is that I can only send out big images, and that the cam settings don't wish to stick. I have to set that up anew each time I start the cam. I haven't found a solution for those yet.
Check out my page right
here (don't scroll, it is in the top) for the install on a Debian based system. The file is a .rpm, so you won't need to alien it to .deb if you are running on a system that reads .rpms of course.
And for the love of puppies.. !!!!!!!!!!!!! is irritating.