Sorry, No you can't. If you don't have an xbox, I'd say to go out and get one before the first quarter of 2006 because once the Xbox 2 is available, the original xbox will be discontinued.
You would have to Softmod your Xbox in orde to use Slayers if you don't have a Mod Chip. It involces Flashing your TSOP with a bios and can get alitle tricky if you don't know what your doing.