To use any magic item (wands/books/amulet/weapons, etc) you must select them from the
magic items menu, keep in mind though that you have to equip the items first, you can tell if an item is equiped if there is a "
+ in front of the name. For example when you what to use the wand of magic missiles, go an select it from the magic items menu. when you select it for a second time you will be able to cast the spell, all you have to do is target something.
