This is not the way to go about this.
instead of using a security assist access rule and security assist show region, use the WebAssist Show Region utility.
in design View, type yes where you want it to show, then select it.
in the server behaviors panel, click the plus button and select:
WebAssist -> Utilities -> Show Region Utility
IF: Click the lightning bolt icon and select the isactive column of the WADAproducts recordset.
Is: Equal To