Well after trying for ages to get the file to download yesterday, today just clicking on the link got the downlaod working perfectly first try... I'm at a loss to explain why it's suddenly working again, so to anyone else with this problem just be patient and try again later, and maybe it will work.
Edit: Actually I can only d'load the .com addressed files, not the .net versions but it's no biggy now I can finally download the new version