I have the Samsung Blackjack and am running Windows Mobile 6 on my smartphone. I was reading and everywhere says that WM6 uses .tsk files as "themes". I followed instructions (copied the .tsk files in all sorts of numerous locations on my phone like it was reading from various website), however, when I go into my phone, I can not see any of them. Then somewhere it said to go to Start, Settings, Today... Well, I get as far as "Settings". I don't have a "Today" option. I just want to be able to install my new themes, and it's driving me NUTS! Please, someone help me! Thank you.

You need to copy the .tsk files to the \windows\ file of the device. You need ActiveSync (came with your Blackjack) to establish the connection between the device and the PC. It's all file explorer from there on out. Also see;
http://www.microsoft.com/windowsmobile/activesync/activesync45.mspx
especially if you are running Vista.
Hope that helps.