Grant,
The OnTime SDK Example that integrates Tasks into Outlook 2007 is not 'production ready' and is therefore just a simple example of how to work with the SDK and perform basic operations within Outlook 2007. Upon working with the example and modifying it to your needs you could include the ability to include/exclude archived and completed items if you wished to do so.
The example is ready to use 'out of the box' but only includes a small portion of functionality and almost no filtering at all, with the exception of some minor features to show off SDK and/or Outlook functionalities.
Thank you,
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David HigginsAxosoft