You don't say when you published your listing. It can take a day or so from publishing it for it to be visible in searches.
If it's more than a day since you published it then you should contact Airbnb support.
You can type "contact airbnb" in the "Search the community" box on these forum pages where you posted your question. Scroll down a little in the list of suggestions that appears and click on the "Contact Airbnb: A Community Help Guide[UPDATED]" one. That lists phone numbers and ways to contact them via Twitter or Facebook.
It's not (yet) integrated in the system, as @Steve143 allready mentioned: have patience if listing has been created recently. Wait for results coming up from this link:
@Cherie29, as @Steve143 and @Emiel1 have mentioned, it does take a little bit of time for it to become visible.
Luckily, it seems like enough time has finally passed!
I was able to find your listing on the map of Fortitude Valley, and for the map I was looking at, of the 236 shown, your listing was on the very first page at #13 of 236!