Updating fields using Admin Update page

I think the problem is that the form is showing a "Please enter a phone number." error message and that's the reason the form is not updating. I am using British phone numbers and maybe the software is set to american style.

Does anyone know which files I need to alter and what code I need to use? I'm pretty sure if I don't get the "phone number" error then the page should update - problem solved hopefully..

Thanks for any assistance.

**Update**

I've found the problem and it's what I thought it was - an error reading the British style phone number whilst updating the records. If anyone has the same problem I went to the Admin folder opened the users_Update.php page and changed the following line to enable to page to recognise the British style phone number. The line originally read:

$WAFV_Errors .= WAValidatePN(((isset($_POST["UserPhone"]))?$_POST["UserPhone"]:"") . "",true,false,true,8);

and once I changed it to:

$WAFV_Errors .= WAValidatePN(((isset($_POST["UserPhone"]))?$_POST["UserPhone"]:"") . "",false,true,true,8);

everything worked fine and the page now updates the database.