[Max Taxable]

Just ditch it. I was one of the first to use it with vBulletin and did so for nearly two years. The nonsense, downtime and BS aren't worth what it does for you, which is basically cache your static content and try to serve it from a site nearer the user.

As far as its protection against denial of service attacks go, it's nominal. Most people who believe they have been attacked in the past actually weren't. The likelihood of you being the target of a DoS attack is extremely low.

As far as your actual problem goes, this is well covered at the CF support area, there's a edit needed in one of the vB files so actual IPs are shown instead of the proxy. It's also explained to you during the CF install process.