STEP 1: 

Go to Autocad menu and use the GenesisIOD menu.

In case you have Autocad 2009 Click over the blak arrow listed bellow     Go to Autocad Genesis IOD menu.

In case you have Autocad 2008 or 2007 The menu is in the up side.

 

 
STEP 2: 
 

Click over GENESISHELP command.
 

In case you have Autocad 2009

In case you have  Autocad 2008 or 2007

 
STEP 3: 
 

Click over + symbol.

 
STEP 4: 

Click over "PRACTICE DRAWINGS FILES"

 
STEP 5: 

1) Click over right side links for "Guidegen Command sequence" examples.

2) Click over left side links to download the DWG files.

NOTE 1: DWG files was saved with INTELLICAD, sometimes Autocad alerts that they are "none original files and could be unsafe", but they are safe.

NOTE 2: these DWG files were generated with the Guidegen Command of the full version, so they have entities that could be shaded or rendered. After you apply the Guidegen command of this evaluation version the entity generated is virtual and cannot be rendered, but you could modify the Guide curves to obtain new shapes. To avoid the limitations of the virtual entity you should buy the full version.