I downloaded via bit-torrent:
DCS_World_en_1.2.0.63205 <-- Application
DCS_World_en_1.2.0.63205-1.bin
DCS_World_en_1.2.0.63205-2.bin
DCS_World_en_1.2.0.63205-3.bin
I used the bit-torrent link provided at the bottom of the downloads page here:
http://www.digitalcombatsimulator.com/index.php?ProductId=21&end_pos=137&scr=product&lang=en
I don't have a problem with DCS A-10, but incase you want to know, it's version 1.2.0.63205
If there is anything else you want or need to know please let me know, I wan't to enjoy this amazing flight sim.