TripleBoot - Xp/Vista/Ubuntu - StraightFromGrub- AvoidVistaBootloader

[doomgiver]

yeah, you got it.

so, you are trying to know what is going on when the windows installs its boot data?

well, one solution is to make a separate boot partition for each install (like /boot of linux, but i have NO idea how to do that with windows), and add each boot entry to mbr via easybcd.
else, it looks like you are stuck with xp and 7 joined together, coz one of those WILL be in charge of booting them both

When we boot any one of the operating systems we want all other OS partitions to be hidden, but want the two data partitions to remain visible. Our data files can then be accessed regardless of which OS we boot into. Hiding a partition means it is ignored while another OS is booted--it will not be assigned a drive letter, and files on it will not be accessible.

oh, so this is what you mean!!

great link!! its going straight to my drive