[Wine] winetricks ie6/ie7 on 64bit system

[occhigrigi]

Hi everybody,
i'm running wine 1.2 on opensuse 11.3 64bit.
Trying winetricks ie6 or winetricks ie7 result in an installer error dialog:

"This installation does not support your system architecture (32/64bits)"

and obviously closes.
Other 32bit programs run perfectly (i.e. UltraVNCviewer)

Is there any way to make wine act only as a 32bit windows on a 64bit machine?

These are the packages installed:
wine-1.2-4.1.x86_64
wine-mp3-1.1.39-1.pm.12.1.i586
wine-32bit-1.2-4.1.i586
wine-gecko-1.0.0-6.1.x86_64