IE Firewall Problems

Help! I am going crazy trying to get my stupid IE firewall to allow one web site into my computer. It is this one:

gippyrideshare.com.au

IE simply WILL not let this through and Firefox is unable to open it as it uses IE to access the web. I have tried Tools, Security, Trsuted Sites, Add Site etc but IE wants me to change it to https which is not recognised by the web. I want this site and am tearing my hair out trying to access it. Damned IE refuses to let me join up.

Thanks in advance.