Sorry I couldn't find it, so let's see if this helps.
Uploading photos using Photobucket
Open up Photobucket to show a page like this
Then click on My Albums at the bottom of screen, this will show all your current photos within your iPad.
Click on the upload button (arrow in top right of screen)
Choose which section your chosen photograph is stored, mine is in Camera Roll
Then click on the photo, it will begin to upload to Photobucket
Then click on current uploads when it has finished uploading......
And you will be greeted with this screen
Click Done, and your uploaded pictures screen will refresh with your newly uploaded photos appearing in it. Click on the photo you want to show on iPad Forums
In the top right of the screen click on the chain link
Then choose the link you wish to use, the one next to the bottom is the one I've used in this post (IMG Code)
Then come to this or any other thread and right click and paste within your post. Let me know if this helps
Chris