The USb stick is far from worthless, On my 3500 I can back up the factory bin to the memory card, I would think it's the same with the 250. except using a usb stick. It's also used to backup your channel lists to the usb stick also. ( I do this regularly on the 9200 as now and then I get a little too quick on the remote while programming, lock it up, and voosh- all programming is lost. But it's restored in a minute from my backup. The 9200 uses a usb stick.) Cable is for those that want to use a computer to update firmware, as in some cases, may be faster than using the stick.
Just use the TV out as the other outputs are just improved methods of transporting video to a video monitor. You may have to start another thread to get help with programming the 250, as I have no experience with that particular receiver. Should be similar though.
Wow, pansatusa site down. I hope it's only a server error somewhere on the internet. I was on the site earlier this week I believe. Hope they don't close up shop. Even if that is the case, I'm not going to get rid of my Pansat's anytime soon.
BTW- you've hooked it up, what does the Q read?