i 'm not quite sure.. i am not that great with that type of stuff.. but from what i've seen other people doing i think all you have to do is delete some of your old pics to add new ones... you might want to verify with one of the mods or something tho..
Here's what you do if your current view is in PINK: Click on Profile in the upper right hand corner of the screen and change the Board Style to blue and hit Submit. Then click on any one of your own posts (doesn't matter if there's an attachment or not) and then click on the Profile that's right under your siggy. Near the top (I think) there's something called User Attachment Panel. Click on that and it will bring up a list of every attachment you've ever posted by date. You will be able to delete as many as you like. Then, if you want to go back to a pink screen, just keep using your back arrow key until you come to the first Profile (upper right) and you can change your Board Style back to pink.
It sounds complicated but it isn't. Just a few steps to follow. I delete a batch about once a month so I don't run into the problem of not being able to post pics. When I have pics to post I don't want any delays! :lol: