few quick questions

ok i have the following :

PHP 4.1.2
GD2 + imagemagick installed

so reckon gallery would work fine with that.

Now what i want to know is can the gallery part (the sections) actually be integrated into the main index page (forum home) like it can with photopost ?

also with photopost on main forum home u can have a box with last 3-5 uploads does this gallery have the addon for that as well ?

Yes, that is all you need for the gallery to run.
As for the hacks, those haven't been created yet, but I'm sure it won't be long until somebody does.