basic - Where is FlexSearchForm snippet ??

Hello,

Where can I find the FlexSearchForm snippet ??

I desesperatly need it to setup UltraTagCLoud

( http://www.chiroux.com/index.php?id=93&searched=FlexSearchForm&highlight=AS_ajax_highlight+AS_ajax_highlight1 )


May be this is deprecated but as the Utag need it ..

Or how to use another search (HyperFlexSearch ?) with Utag ...

Thank you