You can. But it won't show the picture in the sig, it will be a link to it. And also you need to host in somewhere, because you can't upload it from your comp.
Yeah, I have him hosting me too (thanks again) and I think he is 're-doing' some server stuff (as this has happened in the past). It will be back up in a few days, buck up.
Most of the time none. The only shows I ever watch are (besides the occasional 'local area network' ) are Everwood and 7th Heaven. And those are all repeats in the summer.