I have tried a Windows app on 32-bit and 64-bit openSUSE 11.x with the same results as reported before,
no audio devices. "dsound.dll" exists and user.reg has the following set
by winecfg. On startup, it complains "not able to load libusb0.dll" - It in drive_c/windows/system32/ along with libusb0.sys.


[Software\\Wine\\AppDefaults\\Rocky\\DirectSound] 1233701093
"DefaultSampleRate"="48000"
"EmulDriver"="Y"

[Software\\Wine\\Drivers] 1233701093
"Audio"="alsa"

Searching on sound for wine, there is a mention of ~/.wine/config which
I have installed, but that doesn't seem to have any effect.
yasu:~/.wine # less config
[Win98]
; Uncomment the "Drivers" line matching your sound setting.

"Drivers" = "wineoss.drv" ; default for most common configurations
;"Drivers" = "winearts.drv" ; for KDE
"Drivers" = "winealsa.drv" ; for ALSA users
"Drivers" = "winejack.drv" ; for Jack sound server
;"Drivers" = "winenas.drv" ; for NAS sound system
;"Drivers" = "wineaudioio.drv" ; for Solaris machines
;"Drivers" = "" ; to disable sound
"WaveMapper" = "msacm.drv"
"MidiMapper" = "midimap.drv"

I have also tried the app under Crossover Office with the same results.

May be something is needed in system.ini
yasu:~/.wine # less drive_c/windows/system.ini

[mci]
MPEGVideo=mciqtz32.dll
MPEGVideo2=mciqtz32.dll
avivideo=mciavi32.dll
cdaudio=mcicda.dll
sequencer=mciseq.dll
vcr=mcivisca.drv
; videodisc=mcipionr.drv
waveaudio=mciwave.dll

[drivers32]
msacm.imaadpcm=imaadp32.acm
msacm.msadpcm=msadp32.acm
msacm.msg711=msg711.acm
msacm.winemp3=winemp3.acm
vidc.mrle=msrle32.dll
vidc.msvc=msvidc32.dll
vidc.cvid=iccvid.dll
; vidc.IV50=ir50_32.dll
; vidc.IV31=ir32_32.dll
; vidc.IV32=ir32_32.dll