The original test~zone that I got had no readme file, so this is a short filler from me (Draco). The original package of this level was created before ATX and had a BAT file to import new sounds. I'm not really sure how it worked - it imports them to TresCom.tpa, which the retail engine doesn't recognize. test~zone can be used in the TC_Isle engine without -any- need for importing sounds - all you need to do is move the 5 level files and 1 asb file into their appropriate directories (assuming ASB can take the place of ASA, all I got was the ASB). For all other cases, I have turned TresCom.tpa into an additive TPA used by ATX, complete with its assigning INI file. Simply drag the contents of this archive directly into your installation or demo folder, using the existing directories, and it should work fine.

-Drac.