your "folder tree " should be:
PokerStars/Xthemes/everlong.twoplus.../nameofthemod ex. ano2
with the xthemes.ini file in the xthemes folder
the folder with the name of the mod should contain a fg.bmp and a bg.jpg plus (not all of them) a folder called labels and one called ctrls.
anyway, I have zipped the complete collection (with a couple of new ones) again. Just remove your whole xthemes folder (unless you have some other custom themes) and replace with this.
it is here: http://www.mediafire.com/?24gpjc4lczx