Default Flash back to 2.1 x10 mini

I want my x10 mini flash back to its original stock rom which now is 2.2 cm6 i used the PC companion "repair phone" method but it appears that it can't be done with Window 8 and this really make me feel so frustrated! Then i try to use the SEUS, but i found that there is no x10 mini in the list of update
So i hope sombody can help me with suggest me any other ways to flash my x10 mini back to 2.1

sorry for bad english i know how terrible my english is ,hope u guys understand

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