Thank you. This problem was reported in our forums a short time back. A fix has been implemented and will be pushed out in our next maintenance within a week or so. Please see: http://www.s2member.com/forums/topic/problem-with-wordpress-folder-search-code/#post-54047
See also: s2Member® » Support Policy
Support for Products by s2Member® is available only through our Customer Support Forum. Our customer support representatives are available Monday through Friday; excluding all major holidays. Our Customer Support Forum can be accessed through your account at s2Member.com. We also have a forum for Pre-Sale Questions.
We ask that you submit all pre-sale and/or technical support questions through the appropriate forum at s2Member.com. An s2Member® support representative will gladly address your question/concern within 24-48 hours.