This isn't really a photo issue; it's a file management issue. And so you need a file management app. I recommend the ASTRO File Manager. The Pro version costs $4, but the basic, free app is sufficient for this job (and much more).
The Camera folder contains all of the photos you've taken but have not yet deleted or moved elsewhere. Each photo will be visible as a thumbnail. Tap and hold the photo you want to move. If it's your most recent snapshot, it will be at the bottom.
An orange outline will appear around the thumbnail, indicating that you've selected it. Two additional menus will pop-up.
If you want to select an additional photo, tap it. If you want to select all of them, tap and hold any one of them.
Tap Move on the bottom menu. Two buttons will appear: CANCEL and PASTE. For now, ignore them.
Navigate ASTRO to the target folder. You can swipe left to right for the Android version of My Computer, listing all of the storage devices available. Tap the one you want and find and tap your desired folder.
If you want to create a new folder, tap the menu icon in the upper-right corner and select New Folder.
When you're in the right folder, tap PASTE