hey guys im new here so i hope im posting in the right place...

recently i tried to make both partitions primary partitions it was a bad idea i thought it would allow me to boot of both partitions with boot magic so i could choose between each partition (it didnt let me do this before so i had to create a new partition with windows because i could not boot up at all) it didnt work and now whenver i boot up it goes onto the bootmagic screen were you can choose between the o.s you want to boot of i press enter on the xp one and it goes to black screen with writing then restarts...i tried to use the recovery cd's but i keep getting this error
error #1820
whenever it enters the recovery screen with the loading bars.i then tried to use a the windows recovery cd were you can format partitions and isntall windows and stuff but that didnt work....im hoping someone can help me...

(sorry about the typing im not using a great keyboard)
thanks