bsriram7 wrote: Basically, stuff I cannot find within the the Synaptic Package Manager.
There is a repo for everything. Just add the right line to your /etc/apt/sources.list and you'll have tons of more software. See this link:http://www.linuxmint.com/forum/viewtopic.php?p=22307#22307
bsriram7 wrote: I downloaded Prozgui. It's on my Desktop now, in a tar.bz2 file. I don't understand how I'm supposed to install this.
Read the install instructions on their web site, or check if there is a 'README' or 'INSTALL' file somewhere inside the archive. Usually you unpack the archive and then execute (as root!) the 'install' script or whatever it is named. But this is not recommended for newbies and besides: This method totally sucks. There is a good reason why we have nice package managers: so we can install stuff with a few mouse clicks ... and not hunt down individual files from an archive.
bsriram7 wrote: I've tried using Synaptic Package manager
Synaptic is only the GUI-frontend to 'apt', and 'apt' doesn't care about anything that lives outside its repos or its management. You cannot use Synaptic or 'apt' for random files
bsriram7 wrote: I've tried the command line way, but I don't know how to do it.
Depends on what you were trying to do?
bsriram7 wrote: make install? makefile?
What does the 'README' or 'INSTALL' file say? Are you sure there are no instructions on the web site? What's the content of the archive? The archive name itself doesn't help at all, it only tells me that you are trying to install some beta software which probably isn't in the repos for a good reason. The content of the archive would tell us far more. So if you could do a 'ls -al' on the unpacked directory and post that here, that would help far more.
Besides: Why in the world are you messing around with *.tar.gz and *.tar.bz2 files when there are nice Debian packages that you could have installed with a simple mouse click ???