Googling IVe found there could be a bug??

"Nice work but there does appear to remain a bug that has cropped up since RC2.
Specifically, the bootloader no longer finds /Extra/com.apple.Boot.plist on multi-boot systems using the windows bootloader with chain0. It last worked in v2RC1 but got buggered in RC2, RC3 and still in RC4. Everything else in the /Extra hierarchy is loaded fine – just not the c.a.B.p file. This is very inconvenient when needing 32 bit operation since these automatically boot 64 bit. I read that someone determined that the c.a.B.p file is only loaded if the booting partition is both primary AND active."

ITs liek it doesnt see the bootloader file