Installing contributed modules could be summarized

Installing contributed modules could be summarized
http://drupal.org/node/70151

First paragraphe says

"
Once you have the Drupal core files installed, you can begin adding third-party contributed modules to extend or alter Drupal's behavior.

The basic instructions are as follows: Download the module, extract the files, upload the resulting folder, and enable the module in Administer > Site building > Modules.
"

It could be handy to add a summary of the detailed instructions. Proposal for that could be :

1. Download the module.
2. Extract the files
3. Upload the folder (create a sites/all/modules/ directory if needed)
4. Read the directions.
5. Enable the module.
6. Set file permissions.
7. Adjust settings.

And for new Drupal user, I would suggest displaying "Since the /modules/ folder is typically reserved for Drupal core modules, as of version 5.x you should create a sites/all/modules/ directory and put uploaded modules there. This will also make it easier to update your Drupal site later on." prior to any other information on the page.