No, we do not provide such service. You can try third-party programs offering an SWF to GIF conversion. We are not affiliated with these softwares and do not provide the support. Please keep in mind that exact reproduction of a Flash SWF file as an animated GIF bitmap is rarely possible due to technical difference between the vector and bitmap image formats.
If your ad publisher requires a GIF/JPG backup image for your Flash banner, we can supply a static "snapshot" of your ad upon your request.