PPCGeeks - Sprint stock GPS

ok so i had my titan for about 8 months and love it. i really never changed the rom or anything like that. I installed lots of fun programs and such. but as far as the ROM/Radio its the way it was when i bought it, never messed with any of that.

Now heres my problem. I want to get GPS on my phone and i know there are custom roms and such but they seem like alot of work to update rom/radio (and all that otehr stuff). So i wanted to know if there are any official sprint updates i can use where i can get GPS?