Serial Premiere Pro 1.5 I Downloaded The Trial Of Adobe Premiere Pro CS3 And It Says 'licensing For This Product Has Expired' HELP

I downloaded the trial of Adobe Premiere Pro CS3 and it says 'licensing for this product has expired' HELP - serial premiere pro 1.5

I try to use the trial version and after installing the run and this error occurs licensing this product has expired. "Trial and chose not to enter a serial code. I tested the beta version, if it is on the road, but the uninstall and delete all files from Applications / Adobe ....
Can anyone help?