That is not true anymore eyeCpc. We have worked on it and have now got a while slew of options to fix the XP after Vista method.
We haev gotten almost all the common errors fixed and some of the uncommon ones as well.
Installing XP After Vista - EasyBCD - NeoSmart Technologies Wiki Troubleshooting Windows XP - EasyBCD - NeoSmart Technologies Wiki
As you can see a lot of work has gone into making the proce3ss as easy as possible. Computer Guru and myself have done a lot of testing on several situations to make it work as easily as possible for everyone. So we have tried to fix as many of the XP after Vista problems as we can.
karzq...not that i know of. Most of the time i jsut pu tin the Vista bootloader and just remove the Vista entry and go with the XP entry. Either that or i modify the boot.ini to have 4 seconds and not 30.