How to insert macros (DFP...) for iframe Ad code?

Use the BOLD text to identify where to insert the DFP Macro. I have edited out sensitive information from the code below, use it to only identify where to place the macro. Use Bannerconnect's javascript tags not their default iframe tags.

**300x250
<**!-- BEGIN STANDARD TAG - 300 x 250 - ROS: Run-of-site - DO NOT MODIFY -->
<**SCRIPT TYPE="text/javascript" SRC="http://ad.bannerconnect.

**net/st?ad_type=ad&ad_size=300x250&section=******&pub_redirect_unencoded=1&pub_redirect=[insert --macro here]">
<**--!-- END TAG -->

**728x90
<**!-- BEGIN STANDARD TAG - 728 x 90 - ROS: Run-of-site - DO NOT MODIFY -->
<**SCRIPT TYPE="text/javascript" SRC="http://ad.bannerconnect.net/st?ad_type=ad&ad_size=728x90&section=*****&pub_redirect_unencoded=1&pub_redirect=[insert macro here]">
<**!-- END TAG -->

source: http://www.google.com/support/forum/p/dfp/thread?tid=0d83afaea2fa892f&hl=en