The clothes are from Apartment Life, Squinge. I don't think EA, aka "the creator", are going to do the conversion on request.
gialuan: search through MTS. I'm pretty sure those are already done. The long dress is here:
http://www.modthesims.info/download.php?t=299804 The other one was probably done as well, it's just a matter of slogging through all the downloads because not all the creators tag their posts so their stuff can't be found using the search.
