1) Log into the RV SiteBuilder

2) Select your project

3) Go to Step 5 

4) Select the WYSIWYG on the page you want to add the flash banner

5) Select the Online Flash icon

6) It will prompt out new window where you could select banner type then click Next

7) You can configure your flash banner here.

8) Click on the Generate button to generate the flash banner

9) Save. You could preview your site by preview button before save your project.