I didn't remember if it was for this adobe's soft but you prolly need to disable your internet connection while the activation or something like that, anyways if you found out the right crack there should be a sweet readme.exe explaining how to crack it.
If you are using a legal serial number .... you're fuckd up
do a prank on them
do a prank on them
If you are using a legal serial number .... you're fuckd up