Hello: I spent about 40 minutes earlier today working on a much more lenghty writeup than this one, and apparently lost it in the heat of battle. In any event, I have got a working solution with Allan's module and gotten it such that it will build and more importantly debug. Please note the following is only for advanced developers, I don't have the time or patience to explain everything.
I have posted two versions of my own enhancement to his work, the full most recent DNN release (minus database) and the module by itself.
The important thing to note is that the module conversion wizard was apparently used to create these DNN 4 projects, and uses the OLD method of having seperate module components for each assembly, and copies all of these into a distribution folder.
Before using these, you must first install Allan's installation only module distribution, uploaded through the DNN Module upload tool.
Once you have installed the WWStore module using the module uploader, then you will need to extract all of these files into the Desktopmodules\WWStore directory.
Using your favorite text search & replace tool/method, locate all instances within the text files (*.ascx, *.sln, *.csproj, etc) of the hard coded paths to my own development environment and replace them with your own. There are a bunch of paths that must be fixed, find them and fix them. If it isn't obvious what you need to do, please don't follow these instructions.
Next, copy the files in the \DotNetNuke4\DesktopModules\WWStore\_CopyToDNNRootDirectory to the root directory of DotNetNuke. These are a simple DotNetNuke csproj much like the old style _DNNStub project. (there is also a buildsupport in the module's directory).
Finally, map the virtual directory for your dnn core installation in IIS Web Admin tool (I tried debuggin with casini, it didn't work) and set the startup page to the same url as the use IIS option.
Provided you fixed all the paths in all the project & solution files, you should be able to double click on the C:\Inetpub\DotNetNuke4\DesktopModules\WWStore\DotNetNuke.Store.sln (my path, translate to your own) file and VS2005 SP1 (very important as WAP included as part of the release) will open and point to all the appropriate assemblies etc with the appropriate debug/build/post build options and operations set.
The two files are available for a limited time only on my ftp server: ftp://aciasoftware.com/files/DotNetNuke4WWStore.rar (33 Mb full install) ftp://aciasoftware.com/files/WWStore.rar (18.2 mb Module only.)
If you are a seasoned developer, don't hesitate to post your questions here regarding any special considerations, etc, I may have missed.