Hello Maureen, I've never used PhotoBucket so I don't know how it compares, but I would recommend
YouTube for uploading your videos.
You will have to create a YouTube account if you don't already have one. Then use
these instructions to upload your video. They accept wmv, avi, mov and mpg videos, and possibly a few others.
Once your video shows up on YouTube, just copy the YouTube url, and paste it into your post on In the Roo.