It seems that photobucket works similarly to youtube and other like sites. The video is embeded, and no provision is made for saving them, only linking to the page where it is played. There are ways to get around this on youtube (which I could explain, but it requires a bit of effort, in addition to actually going to youtube which I could understand one not wanting to), however that does not work on photobucket. Also, I would offer to e-mail you the video's but the file sizes locally are quite large, and my email attachment size is only 5 megs...so that won't work either.
I checked out GodTube that PR was talking about and didn't see any of the ones I posted so far (they are still growing though), so I'm not sure how I can help you get a copy for yourself.
If I do find a way, I will more than glady let you know though, in the mean time, you are more than welcome to play them as much as you like from my pb links.