Step 1:

Download SimpleAids and enable Simple Ads and Campaigns modules.

Step 2:

Go to node/add/simpleads-campaign

Give the title of campaign

Give the starting date of campaign

Check the box of Published from Publishing options.

Click on Save button.

Step 3:

Go to http://localhost/testing/node/add/simpleads

Give the title of Advertisement

Select Ad Group.

Select Ad Type

Give Active Date and End Date.

Check the box of This ad is active .

Select your Campaign

Click on Save button. to create advertisement

Step 4:

Go to admin/structure/block

Find your block in which Ad Group you posted. As i posted in Contentents Aids so i am using Advertisement Block: Content Ads.

Set the region for this block, where you want to show.