Vista First then XP = Problems

I hope I can make this story clear. The bottom line is I finally managed to get XP Home Ed. SP2 installed on second physical SATA drive on my Vista 64bit Home Premium SP2 machine. I tried to follow EasyBCD intructions using EasyBCD 2.0 Beta but had problems. Couldn't then boot back into Vista. Using Acronis TrueImage I was ablr to reload the MBR back into Vista (I think) and eventually could boot Vista. But have no dual boot capability. I am not sure just how to use EasyBCD to modify the Vista PBR or bootmgr to do this. Any help would be appreciated. Thank you much and happy new year.

Problem is fixed

Thank you for your reply. I actually did just that and wihile I didn't have a lot of confidence, since I was in Vista at the time, it did work. So all is well. Have a happy new year.