Hello-welcome to the satelite place!
I assume this is your first c-band dish setup, so you are entering a new world. I have to tell you I am not a user of satellite meters, so I can't help you align a dish that way. Probably I could align the dish quicker than I could learn the meter, lol. I would suggest reading this link first:
Footprints by Dish Size - Adjusting the Polar Mount for Prime Focus Antenna - C/Ku-Band Satellite Systems - Tuning, Tracking, Azimuth, Elevation, Declination Angles, F/D Ratio, Focal Distance, Inclinometer, LNB/Feedhorn Assembly, Actuator Assembly, C
That goes over the main points pretty well. There are several angles to adjust when setting up a big dish, the elevation, azimuth, declination, and of course the skew of the lnb (lnbf). Tuning these days is a lot harder than in the old=cband days when everything was analog and you could see noise and know you were close to a satellite channel. Digital is mostly on or off. Here's what I would do: First, get yourself a magnetic-base angle meter,about 10dollars at Ace or a hardware store. You can place it on the dish mount and it'll stay put while you adjust. Then, I would take a receiver and tv and short cable out to the dish where you watch results of your tuning. Start on your 'true south' satellite-the one thats closet to your longitude. If not dead on , then pick the one thats closest which has c-band transponders. Find out the elevation of that satellite for your location from dishpointer or one of the other dish-aiming sites, then adjust your dish's elevation to that.
Then I would go to that satellite in the receiver menu, set it up to scan, and run the blind scan, see if you get anything.
It's hard to type the entire process out here, but that is a basic start. Send me a PM tomorrow if you like (private message, just click on my name) and I'll try to help more. It's easier to explain on the phone..