Port Explorer is fine to install over old versions, if you so desire. There should be no problems. If there is problems doing this , uninstall any version then try a fresh install.
I've just upgraded to version 2. I just overlayed it on top of version 1.8. Do I need to apply a new PORT.PKF file or will the one that was already there be OK.
Thanks Men, I overlayed the new version and entered the unlock code and everything seems fine. Cheers Coach.