What steps will reproduce the problem?
1. Add a ./quickregister/ folder
2. Edit the .htacces to work correctly with .php extensions
Quick summary on the problems.
On the index, you cannot register anywhere without a 404 error.. (./quickregister/ is missing)
%www%/community, %www%/credits etc are not working unless you use .php extension (that is whats wrong with your reWrite rules in .htaccess).
What version of the product are you using? On what operating system?
Latest - v5
Please provide any additional information below.
Steps 1-2 are the problems..