.lzma files require lzma to decompress.  This is a file format that has far 
better compression ratios than bzip2, yet uncompresses far faster.

Obtain lzma here:

	http://tukaani.org/lzma/download

Or locally:

	http://maradns.org/download/non-maradns/lzma-4.27.1.tar.gz

Once you have lzma, here is how you decompress tarball.tar.lzma:

	cat tarball.tar.lzma | lzma d -si -so | tar xvf -

Note that lzma compresses far more slowly than bzip2; it is best for 
files that will be compressed once and uncompressed many times (such as
open source tarballs).