In device manager when I go to App loader and update software it shows an update available "blackberry 4.7.0.107 for 9530 (current)" but under version it still says 4.7.75 what is this update for?
Its nothing, just ignore it. If it were an update, all the kids on this site would be neglecting life and would be posting "ZOMG I gotz da newz OSs W000000T!!1".
You'll know when an update happens.
Posted from my CrackBerry at wapforums.crackberry.com