There are a number of references to Free 2D ST9, it this available in the UK? The PLM website says that ST8 is the 'current download version'.
The UK page is incorrect. If you follow the Free 2D sign up links and complete your registration you will then be prompted to download the free ST9 version.
I can actually confirm this because I just went through the UK sign up process and was presented with ST9 for download.
I will contact someone within our organization to correct the UK page details.