Backtrack installed now can't dualboot or replace OS

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http://www.backtrack-linux.org – Okay so originally I wanted to install Dell's project sputnik (a custom Ubuntu image with custom driver support for my laptop, http://hwe.ubuntu.com/uds-q/dellxps/) and then just install the backtrack tools in Ubuntu but for some reason I couldn't get it to install even though the downloaded .bz2 and the iso have both been sha256sum verified for multiple downloads and trying various bootloaders on Win 7, Vista, OSX and Ubuntu. Since I bought my Dell xps in Asia the preinstalled Windows 7 was in Chinese and I was unable to read the error messages that I saw when trying to install. I figured if (HowTos)