Thanks for the link! I am new to these. The "SDK" version does not seem to install on the N900 device, if that was meant: "Fremantle SDK free armel" N900 rejects the packet.
deb http://repository.maemo.org/ fremantle/sdk free non-free
There does not seem to be any packets for the real N900 device? Regarding libxml-parser-perl. I searched from the mentioned page and with an Internet search engine too.