TerraTec DMX6fire 24/96 sound card problems.

I was able to install the TerraTec 6fire 24/96 internal sound card with Windows 7 using the last driver that TerraTec has on their ftp site for legacy products. But the corresponding software control panel does not work with it. The card/panel interface obviously needs a new driver for Windows 7, but it's not clear that TerraTec will now support an older product since they now are selling a "replacement" 6fire unit with a USB interface (at $250). Does anyone have any thoughts on this? I use this every day and I don't know anything currently on the market that would replace it exactly, with the front panel/RCA jacks and all. What to do?

Thanks for responding. The software control panel does not control all the audio, including internally generated sounds as it used to. Windows Media Player plays through the card, but the software panel cannot control the sound level. I have to use the WMP volume control or the Windows audio level control. There is some audible distortion, and most importantly, Wavelab 6 Studio does not recognize the card for recording wave forms. I get the following message when trying to record:
"Cannot open Wave device for recording. Are you sure your audio card supports the currently specified sample rate and/or bit resolution? Check also if the input of the audio card is in slave or auto-sync mode."

When I attempt to install the ASIO driver, there is a whistling sound coming out of the speakers. Never had these problems with the card/audio interface before, in Windows XP.