including log in form on an other page

Hello to anyone out there -

I should start off by saying that am new to the User Registration Solution Pack. I am trying to figure out how to include users_LogIn.php as a php include on a parent page. I can't seem to figure out how to do this without producing an error. The error I'm currently getting is:
"Fatal error: Call to undefined function wa_auth_rulepasses() in /home/agciorg/public_html/events/2009/GlobalPhosphorusCycle/registration/users_GuestLogIn.php on line 147".

Has anyone been able to successfully use the login form as a include? Any suggestions as to how I might accomplish this?

Thanks in advance!

Don't do it.... just copy the form and have it submit to the current login page for the same effect and you don't need to have copies of the same code all over the place.

Just copying the form doesn't work either. It is still not finding the wa_auth_rulepasses function (even though the link to the required file that contains this function is hard coded and not a relative link)

To clarify what I am trying to do...
My organization often has more than workshop for which we need to register/login users over the same period of time. A link on our site opens a popover box with a drop down menu that allows the user to select which workshop they want to login to. On Change, this selection displays a hidden div which contains the login form (either as an include or just copied code) specific to the workshop selected. But when executed the "Call to undefined function wa_auth_rulepasses() " error displays in place of the login form. I've entered in the complete http//... urls for all references files, but this doesn't fix it. I believe the trouble is arising from the fact that the form is appearing on a page that exists outside of the registration directory (although obviously I could be wrong).

From this description, is what I am trying to do possible?

I'm sure it is possible, but I'm also sure it is too complex for me to guess at the specifics.

OK - so to simplify things...
If I need the users_LogIn.php page to exist outside of the registration directory, what pieces of code would I need to modify to maintain functionality?

Thanks.

If you have the page working in one directory, then you should be able to move it to another and as long as you updated the paths correctly it would work. You woulnd't have to update anything other than paths to include files, css, and images.

OK - then the issue must be the filename. How easy/difficult is it to change the name of users_LogIn.php? Other than instances of the filename in the file itself, where else in the accompanying WA files would I need to change the filename to keep things working properly?

Nowhere. The file name shouldn't matter. Maybe the form action. It doesn't matter where the file is or where the form is as long as the form submits to where the code is.