i was just looking over their site trying to find what version was free, seems they've pulled all traces of it. 4.2 was ok since it had a semi-useful uv projection, many nukemod legacy models were modeled and uved in it. if i were gonna get ts id get ts6, ts7 is

slower and has way too much bloat. it did have a better hierarchy editor but the uv mapper and point edit tools are the same as 6.
their forum seems to have locked all threads regarding old versions. also 6 is the oldest version you can buy so id assume ts5 and lower are now abandon ware, since their developer no longer recognizes their existence. im not sure but i think ts5 has the same uv editor as 6. there are torrents aplenty and i doubt they'd sue anyone for pirating something they consider obsolete.