JC - I did. Here's what it says.....
188.8.131.52 os for 8820 on TurkCell. Multilanguage, including English.
BlackBerry Handheld Software v184.108.40.206 (Multilanguage)
Package Version: 220.127.116.11
* Applications: 18.104.22.168
* Software Platform: 22.214.171.124
* File name: 8820M_PBr4.5.0_rel52_PL126.96.36.199_A188.8.131.52_Turkcell .exe
* File size: 80.12MB
I don't want to use .52/.37 and I didn't see 184.108.40.206 for the 8820 anywhere (at least officially.... ;) )