You don't have to just download from cable/dsl, you can download from any source...
When you see T1-T3-cable/dsl that's just the speed of the host/s internet connection...
Also if you can't find the file you are looking for today, it might turn up tomorrow or in a week, as you are downloading from other poeple like yourself and if there not online to day, they may be at another time...
I hope that clears a few things up for you...
