You can check that a module is loaded using the command lsmod . Running a Java applet requires a browser with the capability to recognize and execute them. The Netscape browser that can be installed as a Debian package will run Java applets. The Debian netscape package provides a wrapper which aids the installation and management of Netscape on a Debian system. Better news is that a number of programs are currently being developed with may provide attractive publicly-available alternatives.
Updates are separately available.
The installation prompts the user to specify the keyboard he will use. US laws place restrictions on the export of defense articles, which includes some types of cryptographic software. PGP and ssh, among others, fall into this category. Due to its restrictive license, it's in the non-free area. Moreover, since license does not even allow modified binaries to be distributed, you have to compile it yourself from the source and the Debian patches.