Trouble with business website

I am haveing trouble using a busness website that I really need to use my Ipad 2 for. When I first got my Ipad 2 I had no trouble with the site. The trouble started when I upgraded the firmware to ios6 from Ios5. I am running ios7.3 now, but I still can not use the website. I can log in but when I try to acess the business part of the site nothing happens. I have tried to use other browsers but none i have tried work, except for Iswifter. Iswifter is much to lagey to use but it does work. I was in the Best Buy store today and tried the site on the New Ipad Air and it is the same. Does not work. I figure it must be something to do with security. Can anything be done to fix this? Here is the url to the site I need to use. gspn3.samsungcsportal.com

Thanks

Ricky