First of all I would like to thank Mr. Bill Hunt and others for helping me.
I am going to receive my CS5 Master Collection by tomorrow. I am currently running the Trial Version.
Is it better to uninstall all the Trial version, and my older Adobe products, and Start with a Fresh Installation of CS5 Master Collection.
< OR > apply the S/N Number from the Master Collection into the Trial version.
You should be able to simply activate with the serial number. Once you launch, you'll be told that we need to download the protected content and that you'll need to restart. After that, you should be good to go.
If for any reason you have to reinstall after that, remember to deactivate first.