I've been ripping apart the Double-Click ad templates for the push-down ads and can't seem to figure out

1) how to actually make them work, and

2) whether the SWF contains all the necessary info or if something is needed in the page templates themselves

Anybody have any experience working with these??

Can you explain what you mean by "pushdown"? Are you talking about expanding units or peeldown?

I have experience working with Dart Motif. Do you use Dart Ad Serving to traffic your ads or is this for someone else? All you usually need to make them work on a site is the appropriate dart ad tags on-page.

It all depends of which ad-system that is used. We work here with two different systems. One system does all showing / hiding automatically. All you have to do is create two swf's (firstly, a banner that plays automatically and secondly the swf of the expanded ad, that has a stop on the first frame). You don't have to add any function calls as the mouse events are handled by JS on the page the ad is on.

The other system we use is a bit more complex as you have to include the calls to javascript (on the page) yourself. If this is the case, it should be clearly mentioned in the specs of Double-click. Typically you have to call a script that unhides and plays the expanded .swf (on rollover of your banner), and also call a script that closes the expanded ad (on rollout or exit). The name of the script and how to call it is different for every ad-system used. Also some ads are opened on rollover, other ads (pre-expanded) can open automatically.