I get the same error - thought it would have been written out of the code after so long!
Using Win7, CS4, Sec Assist 2.0.0, Universal Email 4.0.1
I have a form on a page sending email to selected recipients via a checkbox.
Fatal error: Cannot redeclare WA_StripTags() (previously declared in C:\xampp\htdocs\site\webassist\security_assist\mail_php.php:268) in C:\xampp\htdocs\site\webassist\email\mailformatting_php.php on line 345
If I remove the SA access restriction, the page loads fine. I haven't had chance to test the email yet, as this is on a local machine.