Normal Photoshop is a fully loaded professional package, elements is a stripped down version.
It really depends what you want to use it for. Elements is cheaper, but you don't get all the features.
Photoshop offers a lot more. If you really want to get in to graphics and illustration, use Photoshop along with Adobe Illustrator (drawing program to create images from scratch).
Photoshop can be quite tricky to get into, it takes a while to master how to use the layers, but once you've grasped it its very rewarding.
Can't really help you on tutorials, I've never used them and they never had them for ZX Spectrum graphics tools!
I think (Adobe?) Premier Studio is for video editing, rather than graphics
Hope this helps,
Edited by visitus, 12 August 2005 - 10:19 AM.