ok, there could be a number of things depending on how you have setup the website; but the first thing that comes to my mind is that resources are cached on the front end, so that could explain why you see the old content.
Caching is controlled on the config page, there you can set the length in minutes and the number of resources to cache.
Also, you can refresh the cache manually either by reinitializing the application (not coldbricks, but the website) using resetapp=1 on the URL
Additionally, you can use the SiteMonitor plugin to see all cached items and remove the stale ones individually, or force a reap of the cache. You can download the SiteMonitor plugin from the coldbricks website.
Finally if you are modifying the resources outside of ColdBricks (for example with your own application) then there are methods that you can call that will force a reload of specific packages of resources.
I hope this helps somewhat to pinpoint the problem.
Let me know if you have any questions or need further help
Oscar