Sorry about the wait, but I’ve finished making the SSF4: AE unlocker for PC. It unlocks all the colours, taunts, titles*, icons, character voice acting, bonus stages, and completes all the trials. To use it, just run SSF4: AE, run the unlocker, and choose what you want to unlock.
*It doesn’t unlock the tournament DLC titles (the EX ones).
Download (pre-patch retail version)
All credits go to kache for finding the cheats.
Edit: Pre-patch Steam unlocker