We tried your demo Ajax Uploader for ASP.NET, but we not found 3 new features:
* Small image preview before start upload or after upload completed
* With possibility to change progress bar just text from server side, e.g. we chose large file then click upload button then starts to display progress bar with percentage, but after uploaded file we started validate file (and from there we need to display for client different progress - just print text where displayed before progress bar, e.g. "Validating file, please wait..."), then after success validation we start import data to database (now display on client browser in the same place where was before progress text, e.g. "Importing data, please wait..."), and while it not finished all processes.
Is all this features possible to build in?