Android Market is working like a charm
Just got the latest gapps-package from CyanogenMod7 (http://wiki.cyanogenmod.com/wiki/Latest_Version/Google_Apps
and grabbed all of the apks from the system\app folder (inside the gapps-zip) and placed them in my YouWave apps folder
Then I ran them all on YouWave by clicking on them in the left pane.
After that I couldn't login with my googleaccount straight away, but at least the option was back and no crashes at all.
I think the login tool of the google account doesn't like the ethernet-connection (needs WIFI it says and can't get connection)....
After that (what obviously was not working) I went to the dev-tools (just check your apps in YouWave Android for it) and opened the Account Tester.
I then added my google account (with the add button) and it logged in straight away
Next I grabbed a android market apk (searched it on google, enough people share it on sites).
And placed it in the YouWave apps apk-folder again, opened/installed it, and Android Market worked straight away.
Check the screenshot i made of it running http://imageshack.us/photo/my-images/715/ndroidscreenie004.jpg/
Gmail is also working, but some other apps from the Market will not run (it will tell you it can't be installed on your version of android).
Have fun, if you don't already knew this
[EDIT 29/1/2012: YouTube can't be downloaded from Android Market, WordFeud can, though ^^]