This past December, I ordered a 13" Macbook Pro and also bought a copy of Windows 7. I'd like to have the 32bit version of Windows installed as I have older software that doesn't run on the 64 bit version but want the 64 bit version to run newer applications as I only get ~2GB of available RAM in the x32 version. I've tried installing one version within bootcamp and then adding another partition (MSDOS format) manually in disk utility and installing the other version on that partition. However after the latter installation, I can only boot into the version of windows that was last installed, although I could boot back into Lion. It doesn't seem to make a difference which version of windows is installed first. Does anybody know how to get this triple boot to work?