TP and Sky,
First, I would say if you have FSX Accell, don't bother with the FS9-style static carriers. If you do want them, then yes, you'll need either RCBCO 3.0 for FSX or a similar programme. But honestly, it's a waste of time.
As F409's summary has outlined, there are some great carriers out there. In addition to the Clem and Leyte, there's the awesome Ark Royal IV and Victorious from Flying stations. Javier Fernandez' Nimitz. All free. Install them following the readme's - they take about as long to add into the sim as an aircraft addon - they use a very siimilar file structure.
Once you've added them to the sim and to the carrier.cfg, it's simply a matter of overflying an area you'd like your carrier to be located, and follow the AIcarrier's instructions. Also good to know is that if you prefer using mousing instead of keystrokes, all the menus within AI carriers in the sim can be moused and clicked. I used AI Carriers for a whole year not knowing that, entering the menu numers each time ... I know, smart like rocks ...
Also, while you're on deck, you want to change course, you do it with AICarriers - and your plane truly stays put with the carrier as it steers. Very cool.
All you'll need to do in the case of a plane not originally intended for Accell are catapult settings, and in some cases, adjusted tail hook settings (taildraggers in particular). Our own "Rich" has done a bunch of these, and it has been an immense improvement.
Only "drawbacks" I know of with AI carriers:
1) Saved flights. unless you create tracks, you can't save a flight whilst on the deck, leave the sim and come back to the carrier where you saved. You'll be there geographically, but you'll be in the drink.
2) Replay. I like to replay all my carrier landings, and a moving carrier doesn't cooperate with the replay function. I don't know if there's a way of getting around this using other programmes like FSRecorder ...
So, cut your losses on FS9 static carriers and tools (which were great for their time - no doubt about that) and jump into AI Carriers - If you read the instructions carefully and go slowly and carefully with the installations, I guarantee you'll be ready for carrier ops in less than 30 minutes.
Enjoy!