My post wasn't in any way related to TB. It simply exemplifies the steps required to get any new/fw4 app to work on older firmwares.
All in all it comes back to the keys to remove the protection from some files and then a lot of additional skills.
Even if we had the means to decrypt these files it doesn't magically mean a 3.60+ game will work.
Reports like 'using sprx files directly from 4.0 on 3.41/3.55' are just funny and don't deserve any comment.