Phillips BDP3000 Region Hack A

Hi guys,

Need a bit of advice! I bought a Blu Ray from the states, and when it came it displayed the message REGION A.. I had no idea what that was, I thought you could play all Blu Rays on any Blu Ray Player.. I'm so stooopid >.<
Any who, I found the upgrade direct from Phillips and did it, and realised it didn't work! Doh! Then I found all your threads on here. I have no downloaded the correct software, I think....
BUT...
I have a few questions!
IF I install this... Does it mean it won't play regular multi region DVDS and my other Blu Rays? Only Region A stuff? If it only plays Region A's, it's not worth my time doing, and I will send the Blu Ray back!
Help please!