I had purchased iridium template.
But in my site, i do not want my visitors to know Iam using a template.
If they for eg. click the source to view background image, they can see template/rt_iridium_j15/ etc
How can I change this.
I tried changing the folder name, but errors are coming.
also I did a few modifications to templatedetails.xml but no luck
I don't think you are allowed to change the templatedetails.xml file. Apart from that you can use find and replace in dreamweaver to change the path of template/rt_iridium_j15/ to your desired path in bulk.
No need to open any file, just open dw and go to find and replace and change the look in option to folder and select your template folder, and then with the find and replace fields populated click replace all.