Thank God. Is that something I should have uploaded when installing the extension, or should it have been uploaded automatically?
Meanwhile, I've also been working on a file that's almost identical, at www.gcssepm.org/update_user2.php. This is for admins to update member info, rather than the members themselves. So the form is a bit more inclusive. Everything looks right to me, except I'm getting error messages on lines 18 and 19, which seem to be related to the old database connection GCSMembership that I've since deleted (deleted it in the Database tab by highlighting it and hitting - ) It has been replaced by GCSMembership_i. Locally I get the error messages; on the server I get the dreaded blank page again. What do you recommend I do here?