Can the support team please check the about/privacy/terms pages for the IGalleryScript. I installed it on one of my domains and tried updating the pages but when I click on the Link pages, I get Not Found error. I can provide access to my domain should you need to check the problem yourself.
Just to keep everyone posted, the issue with about us/privacy and terms pages has been resolved. The instruction provided by support team worked.
I checked with my host provider and found that mod_rewrite was enabled for all my domains. Then I followed the rewrite instructions in the .htaccess file. The only string of commands I updated on the existing .htaccess file were the following: