EDU Blog IE Can't Load Page

I'm using the EDU Blog Template and I'm getting an error that it can't load the page in IE. After clearing my cash I can get it to load but the sign in does not show. I've read through the other related posts and tried the various solutions. However I'm still continuing to receive the same error. I hate IE unfortunately the majority of my customers and site visitors have IE shoved down their throats by Microsoft so I have to cater to them. You can view my site at http://www.purity12blog.com.