For easy start with inventory management account follow bellow steps.
Create Manufacturers database
Click on links below to see list current manufacturers and add new one:
See list of all your products manufacturers
Add new Manufacturer »Read how to add new manufacturers
Create Products database
Follow below links to create and mananage products database
First go check products list
Next, add new product
Product details »Next, add new product
Product models » Add new product model »
Order / Invoice management
Follow below links to create and mananage products database