hello every body

I recently faced problem when i want to resize some of my drives and by using partitioning programs my boot record accidently changes and now infact i am unable to start my computer and partition programs display that my harddrive have unallocated( or free space) but one program tells about lose data but unable to do any thing. Is there any good technique so that unaffectly restore by boot record or change new record without losing anything. I tried to do this but this changes my one partition(eg F).

And I have Xp installed on C: and Vista on D, and remember that Vista uses dual boot functionality .I think that fixmbr or fixboot can cause losing data.Any help please