@ichtertz.natalia,

We're still doing minor polishing with the text and links. The plan is to have a page dedicated to the HSK test that will be linked to from the study center, along with the option of having one-click non-stop HSK testing.

In the meantime, if you're looking for the individual tests as part of the various lesson series, you can find them here:

http://popupchinese.com/lessons/hsk-beginner

http://popupchinese.com/lessons/hsk-intermediate

http://popupchinese.com/lessons/hsk-advanced

http://popupchinese.com/lessons/new-hsk-level-1

http://popupchinese.com/lessons/new-hsk-level-2

http://popupchinese.com/lessons/new-hsk-level-3

http://popupchinese.com/lessons/new-hsk-level-4

http://popupchinese.com/lessons/new-hsk-level-5

http://popupchinese.com/lessons/new-hsk-level-6

Hope this helps,

--david