Welcome Regiteye.
While we all share disappointment with the lack of some what we would be simple features on the Mogul , There is some light. You can find just about anything on this site or fellow Brethren XDA . While i am not too familiar with your carriers system , I do know i got the Threaded SMS messaging when i received a win 6.1 . I also see you asked a question in another post where answered by REEG420
Not sure about the infrared stuff. Should be there. Mines got voice command. This option would not be an official US Cellular release. So if you were to bring in your phone you would have to flash back to the last official US Cellular ROM before hand.
Could upgrade to a custom ROM from the ppckitchen. DCD's roms over at xda, or no2chem's rom.
Also you could just install the official sprint rom. Just make sure that you DO NOT let the customizations run after the rom loads for the first time. You must soft reset before this happens. Get your stylus ready you'll only have 3 seconds once it shows up on screen. This is really important.
Then you would install the appropriate dcd carrier cab for US Cellular.
Carrier Cabs Here
http://dcd1182.n715dp.com/index.php?dir=carriers%2F
That would make the phone a US Cellular phone. Setting up voice/data and gps settings. You would only have to do this if you arent using the ppckitchen. In the ppckitchen you can choose your carrier from a drop down list.
Also take a look at this thread if your leaning towards the custom roms.
http://forum.ppcgeeks.com/showthread.php?t=33857
Last edited by reeg420 : Yesterday at 11:20 PM.
that would work. Also to answer the question in regards to installing an EXE . Active sync your unit to your PC install the program via desktop and follow the install instruction , as it will load directly into your unit.
Sorry for the long post and hope you succeed