Okay...seems to work.

I have an issue with my private key and right now I am not able to upload Xournal to Maemo Extras.

In the meanwhile you can go ahead and install them manually, if you can't wait, from the following links (follow the order):

http://mango.dia.unisa.it/maemo/libg...ook2_armel.deb
http://mango.dia.unisa.it/maemo/libg...ook2_armel.deb
http://mango.dia.unisa.it/maemo/xour...ook4_armel.deb

***WARNING****
If you have an old version of Xournal remove it!
Remove also the "ghostscript" package, even if this is optional for now (it will later substituted by "gs").

If you want, you can remove Xournal from the command line (root):

dpkg -r libart-2.0
dpkg -r libgnomecanvas
dpkg -r libgnomeprint2.2
dpkg -r ghostscript (OPTIONAL)
dpkg -r xournal

and then install the debs above.

Tomorrow I will fix the upload to maemo-extras, so I strongly suggest you to wait.
After that I will start working on new features for the port.

Please, let me know of ANY issues you might have.
And sorry for the trouble of upgrading from version 0.4.1, but I assure you next upgrades will be smoother