@sethach
Photo Manager Pro allows for FTP Transfer (over wifi), which makes it possible for the user to upload entire folders from the computer to the iPad, or the other way around. Additionally, there are HTTP and P2P transfer options. And on top of that, you can import and export files through iTunes.
Regarding the memory issue, I also have a lot of pictures and a 32GB iPad. Therefore, what I did was simply to stop sync'ing my pictures, therefore leaving the Photos App empty. I don't see any point in keeping pictures in an App that simply doesn't work.
When and if Apple fixes the problems with the Photos App I'll CONSIDER re-sync'ing the photos and eliminate Photo Manager Pro. I don't think I will though, because even if the do fix the problem, the Photos App is still unable to create folders and subfolders, move/copy pictures from one folder to another, sort the pictures and folders in any way I want, delete pictures, select images for my folder covers, etc. etc. etc. I think the only thing this App does and the Photos App doesn't is that little pinching gesture for opening and closing folders. I hope Photo Manager Pro will incorporate that feature, which I bet they will do before the Apple bug is fixed.