I have build pidgin-facebook plugin for VL......it will be in the testing repo soon...maybe you can try it out...http://forum.vectorlinux.com/index.php?topic=9620.0
for the pidgin-encryption plugin, I try to build it but it require NSS and NSPR from mozilla and I am having problem to compile it.....maybe someone can build it.....
To compile and install the plugin:
Make sure you have the NSS and NSPR libraries.
Install Pidgin, either from source or from a package. If you use a package, make sure to use the development version so that the Pidgin headers get installed.
Download the Pidgin-Encryption sources (pidgin-encryption-3.0.tar.gz).
tar xzf pidgin-encryption-3.0.tar.gz
If Pidgin was installed into /usr/bin and /usr/lib, configure Pidgin-Encryption with ./configure --prefix=/usr.
If Pidgin was installed into /usr/local/bin and /usr/local/lib, you will probably need to set the PKG_CONFIG_PATH to point to the location of the pidgin.pc file, by configuring with the command PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig ./configure
If all went well: make install