The pictures have been grouped by kind:

Official - These pictures are from various photo sessions and are among those who have been released to mags and labels
Studio - These are some "rare" moments in studio hehehehe...
Live - These photos have been kindly donated by fans
Artwork - Some artwork stuff (i.e. original works, covers...)
Wallpapers - Official Desktop Wallpapers
Special Future Past exclusive pictures - Old pics, funny pix...EXCLUSIVE PIX!