1.
Here
Very first one at the top of that page. "Size" it into the position you want (ie stretched across the top of the screen). Yes it can be done, I use that one in precisely that manner on my second machine.
2.
Here.
Fifth one down, by Soontace called "hotinvcastspell.zip". After downloading, just extract the spellcast window, unless you *want* to extract both.
Alternately, there are a number of them
here.