SharePoint Explorer has until now only been available for SharePoint 2003. But recompiled it for 2007

A nice way to get a good view of what have done... 

http://www.microsoft.com/downloads/details.aspx?FamilyID=cb944b27-9d6b-4a1f-b3e1-778efda07df8&displaylang=en

 

The remainder of teh templates have been released and are available for download here

There are some guidelines on how to create accessible web sites in MOSS and WSS in the following whitepaper

 

Windows SharePoint Services Application Templates makes life alot easier, or at best provides a good starting point.

I have been using the Beta on Vista for a while now. The Release can be found here

Using a Singleton Class to maintain Search Reslults that are persisted to Isolated Storage. Binary Formatters are used to Serialize and Deserialize the data that is captured in a List. IComparer is used to sort the captured data Ascending and Descending

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Using SharePoint WSS v3 / MOSS web service to retrieve data from custom lists.