HI,
I don't know if this will help or not but have you got the Creative Product Identification Module Update installed?, links below:
Troubleshooting Sound Issues on Windows 7:
http://support.creative.com/kb/ShowArti ... ?sid=71490
Number 9 on the above checklist:
Download and install the Product Identification Module. This update resolves the hardware/device detection issue for Creative Sound Blaster X-Fi and X-Fi Titanium series of audio devices in Microsoft® Windows® 7:
http://support.creative.com/downloads/s ... owdetais=1
I have the same sound card as you (all be it a different version number the SB073A) but I have not got around to installing the drivers for it yet on Windows 7 so let me know how it goes.
*** Note though: I'm using VLC version 2.08 (on Windows XP) with the same sound card and driver as you have as I couldn't get surround sound out of the later versions of VLC player, all I got was one hell of a noise instead, you can read about it here:
https://forum.videolan.org/viewtopic.php?f=14&t=118922