I am offering this tool that would be valuable to coppermine -gallery users. Because some people just upload large images and clause you al lot of bandwidth. My online image compression tool can let you login to that server and compress any image on that coppermine gallery up to ten levels. You can decide how much you want to save.
If any one here is interested, i can offer them a special if they visit http://www.optimizehosting.com and for special http://www.optimizehosting.com/special.html for the huge discount.
Basically coppermine users can already do that with adding some hacks from the mods board
this tool lets you choose different levels of compression and not just let you do a batch compress which may harm the quality of some or all images