DisplayedName=Halo CXE v1
MapDir=cxe01
BuildVersion=01.10.12.1181
DemosPath=haloconv.xbe
Then in haloconv.xbe.ini put the change the DemosPath to default.xbe. Run the installer. Once all files have been uploaded to the xbox (if it gets an error that it can't upload something, just don't press anything and upload the files in "~output" to your xbox), except "haloconv.xbe". Patch "haloconv.xbe" with Conversion Runner (TSF's Patch) and then copy it to your halo directory. Then copy all the maps to "conv" folder in your Halo directory (the ones in the "~output" of the package you download with the mappack. That's it, you're done! Enjoy!
*EDIT* If some maps don't work for you with this guide that means you forgot to apply Conversion Runner.
BTW Great job guys, I've been looking forward to this for a long time

EDIT
You can do this instead. Some people asked me to post a more n00b friendly guide, so here it is. Click on the "Halo Stuff" folder, then on "Conversion Pack Files", then download the two .rar files there.
briefcase.yahoo.com/vmist@sbcglobal.net
FTP into your xbox and put the 2 xbe's into your Halo directory (the xbe's should be in the "xbes" folder. Then extract "conv.rar" and upload the folder "conv" to your Halo directory on your Xbox. Once that it done, upload all the maps you downloaded for this pack into "conv" in your Halo dir on your xbox. That's it, you're done.
NOTE: Before you upload, open up your "boardingaction.map" in a hex editor and check the build number. Make sure the last four characters are "conv" without the quotation marks. Or else it will not work with my way of installing it.
NOTE: This pack will launch after CXE.