i think smartcj is only the traffic skimming script
The tube itself might be self-written... doesn't look like anything i've come across when i was searching for a good tubesite in the past... Looking at the features, i think i could write it myself in a couple of days (offcourse, i couldn't imitate their design, since i'm pretty shitty at designing stuff).
BTW, hotlinking videos is pretty common with free tubescripts... For example, on ponr.mobi, i use a wordpress-pluging to create a tube, and i'm pretty much free to hotlink or host the movies myself