Having trouble with Cs4, Help greatly appreciated

Hi all, im new to this forum. Im having a bit of trouble with photoshop cs4

I installed it onto my computer and it was telling me important files were missing and then would shut down. It said to try uninstalling and reinstalling, so i stupidly just dragged everything to the trash

Now if i click the PS icon in just boots photoshop with the same error message so i cannot reinstall!

I cant find any files in my finder with a search of "photoshop", "adobe" or "CS4"


Nightmare!

Anyhelp would really be appreciated..

Thanks all

I just downloaded appzapper, the problem is i cant drag the file into appzapper because i already deleted it all