iTunes 10.5.1 is worsen. How to get back artwork viewer? Help plz!

In one of its previous improvements, iTunes introduced the viewer selector which was one of its (very) nice things,

but in the last update Apple blasted this feature away. I can still include several images per track, but they now are render to (almost) a useless feature, since I (cannot) navegate through the diferent parts of artwork contained within each track (i.e. front cover, back cover, disk, booklet, etc.)

The arrows to navegate through are (gone)!

It is a way or work arround to get this feature back?

Plaese let me know if youk now how!

Thank you very much in advance.