First you need to upgrade to our latest 0.8.3 version, which I just released 2 minutes ago. It fixes several issues in "production" mode, which probably affect you:
http://jhipster.github.io/2014/01/29/jhipster-release-0.8.3.html
Secondly, your main problem is that JHipster is designed to create a "single page" webapp, so obviously if you have two Web pages you will have some minor trouble. The only thing you need to do, AFAIK, is to add your file to the WebConfigurer.initStaticResourcesProductionFilter class, just after the "/index.html" line:
staticResourcesProductionFilter.addMappingForUrlPatterns(disps, true, "/profile.html");
That way your file will be served by the "production" filter.