SSIS Import And Export Wizard Data Sources

I'm just beginning to use SSIS (bracing for a steep learning curve due to lack of helpful documentation) and am starting out trying use the Import and Export Wizard.  On the "Choose a Data Source" page there is a dropdown for the Data Source.  I see a list of possible data providers, but not one of "Microsoft OLE DB Provider for ODBC drivers," which is the one I wanted to use because I'm trying to connect to an obscure database.  So I figured that I need to use ".Net Framework Data Provider for Odbc."  Unfortunately, regardless of what I enter for the Connection string or the Dsn or the Driver I invariably get an error, although it's somewhat dependent on that I have entered for those three items.

Either this (when I type in a DSN)

Cannot get the supported data types from the database connection "Dsn=Terrascan_Okanogan_WA".

or this (if I enter a full connection string and a driver)

The operation could not be completed.

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ADDITIONAL INFORMATION:

ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

of this (if I enter a DSN and a driver)

Cannot get the supported data types from the database connection "Dsn=Terrascan_Okanogan_WA;Driver={SmartWare Driver}".

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ADDITIONAL INFORMATION:

Specified cast is not valid. (System.Data)

 

So I have a couple questions.  First, why doesn't "Microsoft OLE DB Provider for ODBC drivers" appear in the list of data sources, and secondly, when using the ".Net Framework Data Provider for Odbc" data source what inputs are expected because whatever I'm doing doesn't seem to work?