Here is a fix for non-working YT encrypted videos on N900, needs CSSU(testing or thumb):

http://46.249.74.23/libsoup/libsoup2...+0m5_armel.deb

Download the package to a directory of your choice.

One should manually install the needed libgnutls26 dependency before installing upgraded libsoup deb, make sure you have maemo extras enabled:

as root:
apt-get install libgnutls26

you'll also need libgpg-error0 from extras-devel:
enable extras-devel repo, update, close application manager and in terminal, as root:

apt-get install libgpg-error0

after that, as root:

dpkg -i $DOWNLOAD_DIR/libsoup2.4-1_2.30.2-1+squeeze1+0m5_armel.deb

if media-player is the player you use with cutetube2, a reboot is needed (or mafw-gst-renderer process restart) for the new library to take effect