[gradsusr] Quickest and easiest way to install Grass add-ons

[Marc Stonestreet]

Hi all

What is the easiest way to install the add-ons into Grass?

I am using Grass 6.4.0RC5 (2009) in Ubuntu Karmic . I cannot use (or find ) GEM - is this only included from 6.5 on?

I want to use the landscape evolution package from the Med Landscapes Dynamics Project - r.landscape.evolve.py.

I have tried various routes after searching the web but have had no success yet - tried svn, apt, source compile etc.

I have followed the Wiki ref http://grass.osgeo.org/wiki/GRASS_AddOns but have not got it right (yet).

Does any one have a simple set of instructions that I could access?

Would it be easier to upgrade to Grass 7?


Thank you in advance 
Marc S