Trying to uninstall trial version

Recently tried out the trial version , but to no avail.( couldnt get it activated whats soever). So id thought i'll throw caution to the wind and purchase the full version of parallel 9 from Amazon anyway.
Only trouble is whenever i try to install it the trial version over rides it and tells me i need to purchase it from the website so i cannot actually type the new activation key in. Can anyone please take me through the procedure of how to uninstall the old trial version , so i can install the version that i have acquired please.
Bear in mind i am quite a dummy when it comes to these things so if you could itemise what i need to do it would be a great help.

Thank you in advance.

 

All you need to do is move it to the trash. Empty trash then reboot your mac.
Parallels knowledge base article with step by step directions:http://kb.parallels.com/en/116992

 

Thank you. Have done that and now i can enjoy having my beautiful mac as well as being able to use the software i bought when i had windows 7. Thank you so very much.