It's exactly that, I own T3DE and you can see ppl who wears AP clothes and you can even load ap clothes on GA account. you can load any clothes for free without buying it. that said, for others to see you with the clothes must also have T3DE. the T3DE purchase page are in the category "exclusives" in the BM, only accessible by vip members. I do not know if DM sells T3DE to non-vip. wait for him to answer you in this post or in MP.