All downloads are working and nobody has reported a problem with them these days either. Check your antivirus, firewall, etc. to be sure the link are not mistakenly blocked.
We host all downloads on Mediafire, and it's possible that some ISP MIGHT block it at their own end, because the rely on global "blacklists" that, because someone uploaded pirated games/movies on it, the blocked the whole domain. We had a couple of reports that BT did that, and I see you are from the UK, so that might be a possible reason.
Also, try to reset your browser cache, and/or remove all cookies from Mediafire.com, or try with another browser.