So i had bought a Jasper xbox without a DVD drive off ebay, supposed to be jtaggable. Well it turned out to be a 7363 with updated CB so no go. Anyway thats how i was planning to get the originial DVD make and model as well as DVD key, I'm assuming theres now no way to get the DVD key correct?

Nope, if jtag can't be done then there are no options left for you at this time.

All this time every document i have read stated 7371 was the only iffy version that might have CB updated. Sounds like you found a exception to that rule. Lucky you

Oh boy lucky me...$103 down the drain.

can still use for parts to fix a different board, why the freak did you pay 103$ for a xbox 360 without a dvd drive/key? you could always re-sell it or just wait and hope a new way to get the dvd key comes out eventually...

When you say it's an updated CB, you mean 6750, I assume? It could be one that was sent in to Microsoft, pretty sure that's the only way you can have 7363 and not be exploitable.