new and confused!

[Intraket]

so im doing the trial. then after the 14 days are up im going to buy Sentinels of fate pack or w/e. but trying to get some sort of UI cause i hate how clumped and everything the one EQ II gives us is...was looking at http://www.eq2interface.com/download...neVersion.html but i have NO idea where to put it after i use winar on it to make it show up ingame.... any helps appreciated. thanks.