I tried installing some Emplode software off the web to load up the database on my computer but it wont recognize it and im sure im missing something.. I run basic WinXP Pro

Are you using a USB connection to hook it up to the computer? If so, please read this.

For detailed instructions on how to upgrade emplode and the player, follow the "Upgrade" sub-link within that FAQ entry above.

it appears to already have its harness installed.

Can you describe this harness? As others have said, if there is really a wiring harness, then it's probably already in the sled and you merely need to pull the handle and it will slide right out of the harness.