A Certain Smiley Is Overriding Another

I need a little help here, because no matter what I type into Google I can't begin to find the answer to my question. XD

Pretty much, one of my forum regulars and I were making smilies, and just got the bulk of them done and installed. The only problem is that the smiley is being overriden by the emoticon. This looks fine on the Admin panel, but on the boards, we're getting the normal instead. (Yeah, it's a Shantae fan club, so everything's got that half-genie theme to it. =P)

Is this a small bug in forumotion or PHPBB3 software? I'd hate to have to break the Very Happy smiley in old posts with a totally new "=D" tag, just so it shows up. I've even tried deleting the smiley and putting it back in, but it's no use. Any idea what I'm screwing up on here, guys? XD

EDIT : Ugh, the problem is just that bad! Had to upload the image to my photobucket just so it'd show up. D:

This is my forum, if that helps : http://tsfp.forumotion.org/

Can you check the code for both the smileys in your admin panel??

Yeah, the Very Happy one has the :D , and Smile has a simple :) in their Smilie Code boxes. If there are any other advanced options for adding or removing smilies, I don't know it! Unless you meant any CSS code for smilies? I can only find lines for the smiley box there. XD

EDIT : Forgot to mention that this encase it needs to be said, but it's not a browser specific problem and I don't keep temp caches of pages after closing, so restarting Firefox isn't fixing anything. I've also checked on the Chrome browser and the problem persists there too.

Can you PM me details of a test member account?

The details have been sent to your inbox. If you need Admin privileges temporarily tacked on, or the password is incorrect, let me know. ^^

Can you give that account admin access just for a bit?

It's done, so you can have a look under the hood now. ^^

I re uploaded the smilie after deleting it once. Its all fine now. Please check.

Wow, you fixed it! ^_^ Thanks for your help, Sanket, our smilies are all set in stone now. ^^