I blogged on Friday about the first preview build of the VS 2005 Web Application Project support being released.
This weekend I wrote and published both the C# and VB migration tutorials that walkthrough step-by-step how to use this new web project model to upgrade VS 2003 web projects. They are now live on http://webproject.scottgu.com.
With the final release of the VS 2005 Web Application Project download, there will be a upgrade wizard that automates Steps 1->8 in the above migration tutorials when you open a VS 2003 web project. Until then, you can follow the manual steps outlined in the tutorials above to upgrade existing VS 2003 web apps using the preview download. In general, I've found that it takes about 15-20 minutes to complete the manual steps for the first application you migrate (and about 5 minutes per application once you know what you are doing - since the steps are pretty easy to zip through).
So far, the feedback from people following them has been very positive (all of the starter kits and apps I've personally tried have also upgraded clean without problems):
Please let me know if you run into any issues with the tutorials or upgrading apps with them (feel free to also let me know if you upgrade without problems -- that would be nice to know too <g>). I can both help you with any issues you find, but more importantly update the tutorials so that others don't run into the same issue again.
Hope this helps,