-Can Blag play wmv, wma, quicktime, real audio/video formats over the internet?
Yes. Using mplayer or xine, both of which are in the menu, different videos can be played. Sometimes rtsp:// URLs have problems--if you feed the URL directly to the mplayer, it has a better shot at playing them.
-Does blag installs JAVA?
-Is blag able to read PDF files?
Yes, with ghostview, or ggv. They are in the menu and it can also view them inline in mozilla.
For flash, you can enable the macromedia repository and download it using synaptic. It will get the correct version for your machine. I don't think there is linux shockwave, but i'm not certain.
-and if blag does not install these by default, how do I go about installing them?
Synaptic (a GUI front-end to apt-get) is your friend here. There is a BLAG repository that has many more applications, but not programs that aren't Free Software (hence no flash, or java in BLAG). Other repositories have this software available. In the BLAG version of synaptic, you can enable other repositories.
-One last thing, If I like blag, anyway of donating to the project to insure it's survival?
BLAG doesn't really take donations, but if you want to help a blag-friendly organization, see http://www.communitytechnology.org.uk
Also, I generally suggest using synaptic for installing things, but the methods described by others in this thread are perfectly applicable as well. You can do whichever method you find easier. If you download an RPM, get ones that are built for Fedora Core 1, or if that isnt' available try RedHat 9 versions. Here's an example of how to install foo version 1.2.3:
rpm -Uvh foo-1.2.3.i386.rpm