Back up your Geeklog Database. The stocks plugin adds tables to your Geeklog database. You can do this with the built in admin backup facility.
Uncompress the stock plugin archive while in the {geeklog_dir}/plugins directory. The archive will create a directory called stock in the plugins directory.
Create the public_html and admin directories. Under your html directory (usually public_html) create a directory called stocks. Under your admin/plugins/ directory create a directory called stocks.
Change to your {geeklog_dir}/plugins/stocks/ directory. Copy the files in the admin directory to the admin/plugins/stocks/ directory your created in step 3. Copy the files and directories in the public_html directory to the public_html/stocks/ directory your created in step 3.
Edit the config.php in the stocks directory and confirm the table prefix and anonymous access settings and other display settings. The default is to use the geeklog table prefix and not allow anonymous access.
Log in to your Geeklog as a root user and run install.php in your admin/plugins/stocks/ directory. The install page will tell you if the install was successful or not. If not examine Geeklog system errorlog for possible problems.
The stocks plugin should now be installed and functioning. Clicking on the stocks Icon will take you to the admin page.
Run the install.php page in your admin/plugins/stocks directory. This will remove all the data from your database.
Delete the three plugin directories created in the install process: {geeklog-dir}/plugins/stocks/{public_html}/stocks/ and {admin}/plugins/stocks/
Thats it.