Anyone have the X2 Flash Upgrade for USR Modem?

Okay, I've recently purchased a new USR 33.6 Sportster off Ebay. The seller said that it was flash upgradeable to 56k. As it turns out, it is! But for $60!!!!!! That's pretty insane considering I paid only $10 for the thing! With $60, I can buy two sportster 56k v.90 modems off Ebay! What gives?

So anyways, I was wondering if anybody out there has the X2 upgrade flash file for the USRobotics Sportster 33.6 Internal Modem? Once I get that, my friend told me that I should be able to upgrade to v.90 via usr.com. Thanks to anybody who can help me!

If you have the file or know a place where I can find the file, can you please email it to icenewker@yahoo.com? Thanks again!

Modem info:
USRobotics 33.6 PnP Internal Voice Modem
Serial #: 00084005000001170901060
Model #: 00084005
Firmware Revision: 4.3.185