http://bugs.winehq.org/show_bug.cgi?id=26037
--- Comment #3 from Oliver Henshaw yoho_ahoy@hotmail.com 2012-05-31 13:12:49 CDT --- comment #2 was with embedded bitmaps for tahoma disabled - reading again I'm not sure that was the case with the original bug report.
The "missing bold with disabled embedded bitmaps in tahoma" problem has been known for a while - https://bugzilla.redhat.com/show_bug.cgi?id=693180 and https://bugs.launchpad.net/ubuntu/+source/wine1.2/+bug/412195 both mention it - and last time I looked I was sure that there was a wine bug addressing this. If this isn't that bug, I apologise.