Note (Sept 2004): the current public beta AlphaX-8.0b16 supports native printing.
Alphatk uses 'enscript' for printing support.
There are a few keyboard shortcuts in Alpha that are in conflict with OSX system-wide shortcuts, like Cmd-` for cycling windows and Alt-Cmd-D for hiding the dock. In OSX 10.3 (Panther) you can turn these shortcuts off in the Keyboard & Mouse System Preferences Panel. You can also just define some new shortcuts in Alpha --- see the Keyboard Shortcuts section of the Alpha Manual.