Earlyer, i restored the bootloader with the commands in your link:
i used my hp restore disk (if i remember right) and just executed the few comands.
After that i installed win7 successfully. I had to downlaod win7 with service pack 1. My laptop needed the drivers contained in sp1.
Also i had to set the bootflag on the partition.
In the end i had to download some more drivers from the HP web site do activate my wirelessadapter and so on. There are alot of drivers that should be installed. I writhe this for those who read this post an use an HP ProBook. (in My case HP ProBook 4740s ).
Now the only thing left is to restore the bootloader again, but then im afraid i wont be able to boot in win7 again.
At this moent it loads just win 7 (bcos i didnt restor the linux bootloader after the win7sp1 install) whicj is enough for ma at the moment.
thanks man, you saved me.