I dont know about the Ultra, but on the Platinum the TPs that are programmed in can be cycled thru from the sat config menu page. As Lak said be sure the one you are trying to point to is the one you have selected to 'see'.
Something often overlooked for skewable dishes is that when you rotate the dish to skew it, you also alter the elevation (and to a lesser extent azimuth) so any rotation of the dish must also have a change in both to compensate. It can get tedious, you are working in three dimensions (azimuth, elevation and polarity offset, aka skew) and they all interact to some degree.
I would set the skew to the calculated point, slowly pan the sky from a point that is a few degrees west of the indicated location to the same amount east of it.
No joy? raise the elevation by some small amount and re-pan. Rinse lather repeat.
You can try 'flexing' the dish by pushing down or lifting the bottom edge as you get close to where you believe the dish should be pointed. That is how critical the settings are, even flexing the dish can mean the difference in having nothing to having a signal that can be locked.
Be patient, Ku can be a challenge at times even for the most seasoned FTAers.
I dont know if you have seen or have read about the old Primestar sat service dishes, but they are excellent for FTA and usually can be had for the hauling off if you can find any in your locale. I would look around and see if there are any in your area before dropping 60 bucks on the one you mentioned. If you find one after the fact for free, it's gonna really get your goat!
I picked up two (more) today that I'd spotted (well, my 6 yo grandaughter spotted one of them) last weekend but there wasnt anyone at home to ask last weeekend. There are lots of pics on the board to id them by.
....and you aren't bothering anyone, that's why we are all here to share, learn and enjoy the hobby.
Hang in there. you'll get it