No, I don't. My experience has been that the restore partitions have stayed. However, having a look, I see this has become a problem for others. Here's loads of results for it:Google sez
So I wouldn't try it based on that. But I noticed there are loads of solutions listed. None of them will involve keeping the windows boot loader.
Apparently there is no difference between XP's bootloader and Vistas.
Ahh...I think I see what you are saying...you don't want to loose your current restore points. I was thinking along the lines of it building them back after the dual install...I just lit up the whole room with the bulb that just appeared above my head.
Grub and lilo will both replace this information. However, putting in a 3rd party bootloader is the only way to run dual boot with windows. You may designate the boot flag to whichever partition you like during install, the superblock will still function exactly the same, just with a different bit of instructions.
It will rebuild them, I know that for sure. If it will keep the current ones, I dunno. I'll have to check on them for you, but, I am almost 100% sure the answer is no, you will loose them initially. When you reboot into Vista, it should make a new one, but you may have to the feature back on first. No fear, I'll find out.