I just found the 'Fast and Easy Checkout' mod and it seems like a wonderful mod and I would like to install it but I saw the following 'known issues' on the support website so I thought I'd better ask for advice first...


PHP Code:
Known Issues:
============
This module may conflict with other modules that have edited the following file(s):

    * tpl_checkout_confirmation_default.php


Some users have reported compatibility issues with Ultimate SEO URLs. For the highest compatibility, please use Magic SEO URLs. 
I currently have the "Order Steps Tableless" ("OST") and "Simple SEO URL" ("SSU") mods installed and working on my website.


Are there any known issues with "FEC" mod and "SSU"?

Also, I know that the "OST" mod has modified my tpl_checkout_confirmation_default.php file.


Do I just delete my current tpl_checkout_confirmation_default.php file (backup FIRST of coarse) and then just upload the one that comes in the "FEC" mod? I will probably uninstall the "OST" mod anyway after successful "FEC" install since it would seem redundant with a one-page checkout.


Any tips or advice on the "SSU" mod compatibility and the tpl_checkout_confirmation_default.php file would be appreciated.

thanks