I would suggest you upgrade to olipro 2.40 then install the sprint rom and then update to the latest custom rom you want to use.
http://forum.ppcgeeks.com/showthread.php?t=32382
The threads listed will not state that you need to install olipro 2.40 first. You have to do this to upgrade using the sprint rom to the latest radio otherwise it will say it’s an incorrect vendor id when trying. I did this and it worked fine!