Вроде должен работать. Может Windows левый? :) Пиратский софт полон глюков и половина из него вырезанно как всегда, всегда пользуюсь retail версиями, а не сборками.
Есть возможность поставить оригинальный Windows с MSDN? (MSDN Это образ который можно скачать с microsoft, предназначен для разработчиков и т.д. - то есть "чистый")

Это уже что то не здоровое, что Windows7 не воспринимает драйвера сделаенные под него же. Совместимость Vista отключена, когда устанавливаешь Windows 7 Delta Series BETA Driver?
Это он? :)

http://forums.m-audio.com/showthread.php?t=11130
Windows 7 Delta Series BETA Driver DOWNLOAD
Beta Version: Delta Series 6.0.2
Release Date: August 12, 2009
Applies to: Applies to Delta 44, 66 (OmniStudio), 410, 1010, 1010lt, Audiophile 24/96 & 192 devices.

Recognized around the world as the top choice in host-based PCI digital audio solutions, the Delta Series is designed to handle the needs of the most demanding project and professional studios. Superb engineering and ultra-high quality converters deliver fidelity surpassing systems that cost many times more. Multiple inputs accommodate recording numerous tracks simultaneously, including zero-latency monitoring for seamless overdubs.

Release Notes

• Initial Windows 7 Release

BETA AGREEMENT:

By downloading and installing this file, the evaluator agrees that M-Audio shall not be liable for any loss or damage that may arise in connection with the furnishing, performance or use by the evaluator of this product, including without limitation, any direct, indirect, special, incidental or consequential damages.

Evaluator acknowledges by entering into this agreement that M-Audio provides no warranties as to the correctness, functionality or suitability of the products for any particular purpose. M-Audio provides no assurance that any specific errors or discrepancies in the product will be corrected.