I have compiled the gtklp package for Maemo.
Now you have easier access to the printing system and the driver.
http://rapidshare.com/files/40207138...armel.deb.html
The gui doesn't fix exactly to the device. I don't know much about gtk.
Maybe someone could fix the gui.
I could not reach "File" in the gui, so I could not add any files within. But if
I start gtklp <filename> the file is already added when the gui opens.
It is going forward!

I was able to use the turboprint ppd for my printer instead of the generic
postscript. So it seems I have full access to the driver functions.