how do i do it??? Does XBL fry your xbox on dl content or is there a site where I can dl it and ftp it over? If so where do I ftp it to?

Some DLC is signed to the specific xbox it's originally downloaded to and may not be useable on any other. I don't know about this one specifically though, or where to download it other than XBL.
If you do happen to find it somewhere, it should be put here:

E:/TDATA/4c410003/Override/

You'll have to create the override folder yourself.