Hello,
I'm using zpminimal theme but noticed that it works well in safari but not in Explorer. When I enter in the album gallery I see the band that should be on the bottom of the screen, i see it in the middle of the screen, exactly over the first album row.
Why?

Probably because Explorer does things differently as usual..:-)
However, I can't help with that theme but if you want the theme's developer to help you should really mention which Explorer version you are talking about.

I see no issues in ie7+. If you are still using 6, sorry you are out of luck....as I stopped accounting for that hunk 'o junk long ago :)