I agree that it might be difficult to properly configure this integration. I can see that you are currently discussing this problem with my colleague, Cody, in a support ticket. Did you try his suggestions?
You are right that we currently do not support Visual Studio 2013. We hope that you will have preview for Christmas, but you are right, it will take awhile.
The Test Lists are deprecated in VS2012, but you can still use them.
Here's the workaround that you can use, if you are working in VS 2012:
1) Open your solution.
2) From the Solution Explorer right click the solution item.
3) Select Add/New Item
4) Do not click on any of the available items, instead type in the text box 'TestList.vsmdi' or any other item name that ends with '.vsmdi'. Just make sure not to click on any item as it would overwrite your input.
5) Find 'Solution Items' sub folder directly under your solution
6) Double click TestList.vsmdi and this will bring up the 'Test List Editor' in VS2012.
See this video
for a demonstration. In VS2012 you can only create a test list and edit it, but in order to execute the test list you need to use MSTest
via the command line.
I hope this helps.