Version 5.0.0d (Build 3235)
php 5.2.0

You can put a flex relate as part of search but it doesn't work. You can javascript error because it shows the flex relate
Code:
<select name='parent_type' tabindex=""
 id='parent_type' title='' onchange='document..parent_name_basic.value="";
document..parent_id.value="";
 changeQS(); checkParentType(document..parent_type.value, document..btn_parent_name_basic);'>
note the document..
I found the file that generates this and it wants {$form_name} I tried to set it to "search_form" in the list view of that module but it still didn't work.
Has anyone found a work around for this?