1st issue: make sure the computer doesn’t crash when you’re flashing. so power disconnections, don’t hit the power switch, close all other programs. it’s pretty much automatic from that point. just read the directions.
2nd issue: was automatic updates not turned on, that’s why she has sp1? or did she just stick with sp1 because of problems that might exist with sp2? I’d move to sp2, but some people have problems. are you running sp2 or sp1?