Hello barsy,
i'm using Revive (and before OpenX) with Joomla.
You must place the invocation code inside a module to be able to show the banners.
I'm using Jumi component, to do this.
You must create an HTML file, inside of it you must place the invocation file and save it with the name that you like.
With an FTP program you must upload this file inside the ../modules/mod_jumi
Inside of Joomla administration, you must go to extensions -> modules
New Module -> Jumi
When the Jumi module is opened, at the position "Source of code" you must insert the path of your HTML, something like this : modules/mod_jumi/XXXXXXXXX.html
That's all