Attic Manager is available for various operating systems. The database file itself is platform-independent, so you can load databases created on Linux into Windows copy of Attic Manager and vice versa (simply by using backup/restore options).

The provided .tar.gz file is a simple zipped package. Unpack it to some directory, and run the run-attic.sh script. If you do it from shell, it would go something like this:
tar -xzf attic-1.01-i386.tar.gz cd attic-1.01-i386 ./run-attic.sh
You don't need to install it, and you don't need to be root. If you are not root, you might see the following message when starting program:
lock manager: couldn't set uid to superuser
This is just a harmless warning message printed by program's database engine. You can safely ignore it.