Build 60 can be downloaded from here:
Windows: Rainlendar-2.3.b60.zip
Linux TAR: Rainlendar-2.3.b60.tar.bz2
Linux DEB: rainlendar2-pro_2.3.b60-1_i386.deb
Mac OS X (Intel): Rainlendar-2.3.b60.dmg

This is beta version! It has not been tested.

o Changed the alarm to play the sound with Windows multimedia API so other formats (mp3, mwa, ...) than just wav is supported now too.
o Added header to the alarm element which contains the date of the event and the due time.
o Centered text wasn't drawn in the correct place. Fixed.
o Copying tasks is now possible only to calendars which support them.
o If a skin doesn't contain any default windows all of them are shown.
o Removed the Outlook edit link texts from the print output and from the menus.
o Skins with '#' and '%' in the name or path should work now.
o Added some more error handling to the scripts.
o Fixes to the alarm in weekly recurring tasks.

What about the "stay on desktop" function in mac osx? Without that, Rainlendar is useless for me... :/
Would love to see this in the next release

Do you mean that the calendar should stay on the desktop when you press F11 (Show Desktop)? I'm not sure if that's even possible or at least I haven't seen any application which would work like that. If you just want the calendar to stay in all the virtual spaces you can change that from the System Preferences.

yeah. Rainlendar should stay on desktop when i hit F11. And it should not show up in the tab switcher (command + tab) and Exposé. It should behave like a standard desktop icon. There is a point in the rainlendar preferences-> Position: on desktop. But its outgrayed. On windows this works.

There is an app that can do this: Amnesty Widget Browser:
www.amnestywidgets.com/WidgetBrowser.html

With this app you can stick all your dashboard widgets to the desktop...
This is the way I actually setup my todos and events. Here is a screen of my desk...
www.dominicschwarz.de/_diverses/desk.png

Hope you get me

Ok, I'll try to take a look at the application. It might take a while though to figure out how it does things since I have very little experience in Mac programming.

thx man!