Hi Dacha,
We offer free 90-day evaluations of all three products, Map Suite Desktop, Map Suite Web, and Map Suite Silverlight Edition. If you wish you can download just one of these products or you are welcome to download all three.
The API structures between the versions are very similar as all of our products are based on the MapSuiteCore. There differences in the API to reflect the differences between winforms applications, webforms applications, and Silverlight applications. So if you create an application using the Desktop Edition, some of the code will transfer to a web or Silverlight-based project, but not all.
In my previous response I should have stated that "There are two very rich resources that can provide you with many different code samples that may meet your project's needs.
The Map Suite Web Edition Sample Applications that are installed with the Web Edition and the ThinkGeo Wiki (wiki.thinkgeo.com) Code Samples Section" as you posted your original question in the Map Suite Web Edition section, not the Map Suite Desktop Section.
To download the Desktop, Web, or Silverlight sample applications simply visit the Products menu at the top of this page and click the 'Map Suite Free Trial Downloads' link.
Please note that we are glad to assist you with specific questions or issues you might encounter but that we have some very good resources for code samples. I am sure that by spending sometime with the ThinkGeo Wiki 'Search' and reviewing the evaluation edition - integrated code samples you will find resources for many of your projects requirements.