I took a break working on this... now back to this issue.
The "select" button does not work for me when I have EnableAsyncUpload="true"
I have a site with the most basic setup:
I can see the files, but when I get to the Async Upload window I cannot click on "select".
NOTE: When I disable flash, I CAN click on "select". This leads me to believe it's a problem with the latest version of flash.
I want to test on your website.... I see that you have a new AsyncUpload demo... but it seems to be broken at the moment.
Can someone else create a super-basic file explorer, and see if the select button works? (have the latest flash player installed).