Thanks for the input. I actually did contact the ISP, and I asked them to "change the delegation" to ns1.domain.net and ns2.domain.net (the name servers for ISPConfig) because I thought that was correct. Was it not? I thought that that would mean any rdns requests would then be sent to ns1.domain.net and ns2.domain.net which would them provide the PTR records. Unfortunately I am not 100% sure if this was correct...? Or maybe it was correct but they way they did it is not acceptable to AOL?
How about the second section with the problems regarding missing/stealth nameservers and such - cause for alarm, or is that something that isn't necessarily a problem?