I’m not sure how you can copy Photos to an iPad using the Advanced menu… Care to elaborate on what you did exactly?
Here’s how I do it: go to iTunes → Devices → Your iOS Device → Photos → enable “Sync Photos from…” and choose either iPhoto album(s) or a folder on your hard drive. Then press the Sync button in the bottom right corner.
See Apple Knowledgebase: iOS and iPod: Syncing photos using iTunes for more details.