I get them too, at first I thought they were from the msn messenger and I never even sign in on the msn. I was looking around like an idiot how to turn it off, they look like msn messenger popups, but then I noticed I only get them when I sign in on here. I am a girl, I do not need them. Is this how you thought you might help support your site?
Bad idea, your members are getting annoyed. As I mentioned in my "bugs" reply, try to ask your members for support. You have a lot of them and if you don't ask for too much, I am sure we will all help you, because you are soooo much better than photobucket hands down.
You allow adult images and your upload program is cool too.
Let us know if you need help
Hugs.