Oby_One:
Can someone direct me to a person that has experience with bootloaders on mini-pro ?
Oby_One, I use ProMinis a lot and have burnt bootloaders to them many times. For programming I power the ProMini at 5V, irrespective of whether it's a 3.3V or 5V model. It doesn't seem to do any damage to the voltage regulator. If ArduinoISP isn't working for you, I'd suggest trying Nick Gammon's excellent alternative sketch on the page already referenced. I'm sure you can adapt his instructions to the ProMini pin-out.