in the new seoUrlManager version (which is gonna be up in a couple days) the query string gets saved in a property, so you can actually access it like this Yii::app()->urlManager->preservedQueryString
of course the Multicomplete Extension has to send ajax requests like ‘controller/action/searchterm’, and i don’t know if theres an option to tell the extension to do that.
Despite my update information in the last post i decided to discontinue development of the seoUrlManager to focus on other projects and extensions…
If you will want to handle the query strings you will either need to configure the multi complete extension (if possible) or modify the seoUrlManager yourself…