Relative Paths

Hello there

I have a requirement to move the webassist folder down a level from one of my site's root folder - so the path would be <root>/<newfolder>/webassist/security, email etc.
This all works fine with the exception of Universal Email - for the life of me I can't get this to work - it appears that the extension just can't find the mail files.
Because of the location of my page, the paths if the webassist folder were at the root would be;

<?php require_once("../../webassist/email/mail_php.php"); ?>
<?php require_once("../../webassist/email/mailformatting_php.php"); ?>

And the include further down the page would be;

include("webassist/email/waue_index_1.php");

If I move the webassist folder down a level, and change the paths above to;
<?php require_once("../webassist/email/mailformatting_php.php"); ?>

Then the extension won't find the mail file webassist/email/waue_index_1.php, even if I change the path to that file.

What path changes would I have to make please to move the webassist folder successfully?
All the other extensions appear to be more than happy with the move but this has got me stumped.
I do know that if I make a change to the email then the path changes will have to be re-applied - this i snot a problem to me.

Thank you in anticipation