Kelly,
You certainly can post your photos in your photo album here on the theBubbler.
Alternatively, if you click on the little yellow post card with the mountain and stamp icon, a window will appear that allows you to paste that photobucket link. Be sure to resize your photo to fit the website format. I use the tool provided by PhotoBucket. I use the 'Direct Link' option after resizing the photo to "Website/Email" size.
I'm doing this one in a quick reply. If I were using "Reply" feature, I would take the time to center the photo in the post. When using a "Quick Reply", after you finish filling in the blanks, select the "Preview Post" option. When the preview comes up, you will be able to center the photo in the post.
I hope this helps.
