Aqua-Soft ForumsPicasa Web
Yeah. Seems alright, although it's kind of limited to what you can do. It's nice that it integrated with Picasa, but I think you HAVE to use Picasa to upload. I also don't think that you can use it to host images to link to on blogs and such, but I'm not sure.
If you're looking for a photo storage/sharing site, I suggest you check out Zooomr, which just announced free pro accounts (with 2 GB monthly upload) free for bloggers!