like how can i change the lightroom verson ?
because everytime i try and open light room it says i need a diferent catalog
If you could answer my questions, that'd be helpful.
As to the "catalog" error - what exactly does it say? Word for word?
I doubt that it has anything to do with whether you're a 32 or 64 bit version of Lr, though.
it says light room catalog is curropt it can not be used or backed up till repared but my photoshop isd working fine
OK, one more time: what is your operating system, and which version of Lightroom?
That message is not going to be related to whether you're on 32/64 bit - what makes you think it is?
And have you repaired the catalog? Loaded a back-up? Created a new one?