Newly Featured Hourlies will automatically appear in one of the top 3 slots in both the Hourlies main listings page, and in the top 3 slots in the listings page for the category you have posted in.
However these top 3 slots are limited so you won't stay there forever. As other Sellers feature their Hourlies, your Hourlie will gradually move out of these top 3 slots. However wherever your Hourlie appears in the listings below the top 3 slots it will still clearly be flagged as Featured. Plus, if your Hourlie is returned in a user's search results and is one of the three most relevant Featured Hourlies for that search, it will appear in the top 3 slots in the search results.
To move your Hourlie back to the top of the Hourlies rankings, you can re-feature your Hourlie at anytime.