Windows!!

Hello. I hate vista. it has errors with all my video editing programs. this computer came with vista. i want to install xp because xp is better, but when i put the disk in there are 3 options install xp, perform additional taks, and check system compatability. the last 2 are white but install xp is grey and i cannot click it to install xp. this is annoying, how am i going to be able to install xp?