Search problem and creating "View My Account" link

I've created a members' area on our client's site with multiple user levels which all seems to be working great and am now in the process of creating the member admin pages. I have a couple of questions: first of all, the Search function isn't working and I have no idea why - I've created the standard admin pages using Data Assist and everything else works fine but when you hit the Search button (both on the Search page and also in the Search box on the results page) it does nothing.

Second question is I want to create a link from the member pages to "View My Account" which would take the user to the member_admin/details.php page - can you advise how I would do this?