LifeinAsia - 6:14 pm on Apr 16, 2009 (gmt 0)

Just put in some logic before the <form> tag. If no errors, then use <form action="next page">; otherwise, use <form action="this page">.

It's a pretty in-depth registration

We've found that the more complicated/involved you make things for people to register, the fewer people will actually register. It all depends on your particular situation, but which is more important to you- a registered user or all the extra information? (In other words, would you rather have more registrations or fewer registrations with more information for each registration?)

Best practice for us (and others) is put all the information that you absolutely MUST have (and pare that down to a minimum) on the first page. After the first page has been successfully submitted, get the other (option) information.