If your specifically looking to add ground spawns id reccomend Mysql-Front...
You can grab it here...
http://www.mysqlfront.de/download.html
Open it up, add your database ip (127.0.0.1) for if your running on same comp. Put in database info and user/pass...
Should then give you the layout of all the tables within the database.
Scroll to groundspawns, click the Data browser in the window to the right, then just add the Zone ID / location / item ID / max ammount / and respawn time to the table.
Spawns should appear in the game after that.