SCT Xcal 2

I ordered mine from mustang tuning and gave them all the specifics of my car. I received today and loaded onto the computer. When I went to the customization screen where it lists all the user options I checked to see if it had my rear end correct and it was listed as stock so I changed to 4.10. It then uploaded the program. Did it upload a completey diffrent program and erase the tune. Also did not see the Tire Size Selection option. How do I know the tune worked? I installed my 4.10's today also so have no clue on the butt dyno if it's in their. Any help or another forum to look for info would be greatly appreciated. Or also a surefire way to know the custom tune is installed.

Thanks,
Nik

Well I ordered it from Mustang Tuning. This is what I had to send them before they could send it to me.
Year and Model of your car
Computer code (Click here to locate your code)
Octane of Gas (The higher the octane the higher the gains!)
Rear and Transmission
Stock or Modified
Stock/H/X-Pipe Catalytic Converters or Not
Mufflers or Straight-through/Glasspack Style Exhaust
List of all modifications
Two-Step Box Rev Limiter RPM Range/MPH Trigger (Add-on Option Below 1999-2004 Manual Only, Uses One Tuning Bank)
Valet/Friend mode lets you set the RPM Range/MPH Cap when someone else is driving your car (Requires additional tune 1999+ Only)

So I received yesterday. Loaded the Tune that said 2002 Mustang 93+. Then it brought me to the user adjustability part. I went through to look at the options. Such as Rev Limit, Spark, Rear End Ratio, Tire Revolutions. I would have assumed they would have changed my Rear End Ratio to 4.10 but it was currently set to stock. So I changed it. It asked if I wanted to save and load. I said yes. So basically did it completely erase my custon tune and go with a stock tune w/ a 4.10 Gear Ratio. And is their any surefire way to know the custon tune is loaded.

Well I checked the speedo by using the rpm calc yesterday. So I knew the gear change worked. I was just wondering if I erased the other tune. Or even how to know I loaded it correctly.

Sweet guys thank for all the help.