Add your MailChimp API key to the Web.config file (in both places) and run the solution in Visual Studio 2010
<configSections>
<section name="MailChimpAPIconfig" type="PerceptiveMCAPI.MCAPISettings, PerceptiveMCAPI"/>
</configSections>
<appSettings>
<add key="ClientValidationEnabled" value="true"/>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
<add key="apikey" value="YOUR-MAILCHIMP-API-KEY-HERE"/>
</appSettings>
<MailChimpAPIconfig>
<MCAPI apikey="YOUR-MAILCHIMP-API-KEY-HERE" />
</MailChimpAPIconfig>Settings -- shows you the default settings configuration (you can change these by adding your own in Web.Config or in the code)
Lists -- calls the MailChimp API method lists()
List -- from the Lists page click on any list to see each member's email address. Uses the listMembers() method
From here you should be able to get going quickly.