New owner of Sidewinder X3 reporting in.

Not sure about the Sri Comp, but guy who sell this RM110 for 2 unit is still at the garage sales. But I didn't really recommend this guy. Not quite prompt and my package (box) is a bit torn.

On the other hand, can I register my Sidewinder to Microsoft for the 3 years warranty even I didn't get receipt from seller? How to claim the warranty? In my case, i can't really find Sidewinder X3 from the drop-down-list at the registration page, in fact not even normal wired laser mouse from the option. How the heck am I suppose to register then?

Any help would highly appreciated. Thanks ~