How do I install gyachi version 1.2.2

[Seithe]

I installed Gyachi the yahoo messenger that was said to work on gnome but how do I install it?
I downloaded the file to my home folder and placed it into my documents folder but now what do I do? The version I download is gyachi 1.2.2

[yeats]

If you're new to installing software on Linux, you might do better to add the custom repository:

https://launchpad.net/~loell/+archive/ppa

Look at the "Adding this PPA to your system" section. After adding the PPA repo you will be able to download it via the Synaptic Package Manager (System -> Administration -> Synaptic Package Manager).