Heya WJester,
Did you happen to make a backup copy of your original FS 2004 Traffic Tools files (Aircraft.txt, Flightplans.txt, and Airports.txt)? Please say that you did.
Another question. Are you using the default AI Traffic for FS 2004, your own custom AI, or are you using a payware AI addon such as Ultimate Traffic or My Traffic?
Playing with AI traffic can be tricky. I started playing with AI traffic by using Traffic Tools for FS 2002. In FS 2002 I created my own custom AI flightplans using flightplan.txt files that I found on the Project AI website.
Luckily I made a backup copy of the Traffic.bgl file at the very beginning. It saved me from having to extract it from the FS 2002 install disk everytime I made a mistake.
The first thing that I did when I first installed FS 2004 was to make a backup copy of the Traffic030528.bgl file in the Main Flight Simulator 2004\Scenery\World\Scenery folder. I copied it and renamed it Traffic030528.ORIGINAL. The Traffic030528.bgl file contains the information for AI flights using the default aircraft.
Now let's move on to the excellent Traffic Tools program by Lee Swordy. Having a lot of experience in using this program with FS 2002 I knew a lot about it when using it with FS 2004. The first thing that I did when I installed TTools with FS 2004 was to go into the TTools Main directory and create a new folder called Backups. I decompiled the original Traffic030528.bgl and Copy/Pasted the resultant Aircraft.txt, Flightplans.txt, and Airports.txt files into the Backups Folder. That way if I messed anything up I would have my original files to restore with.
Now on to your issue. Two things may have happened, both having to do with TTools. The way that you are supposed to use TTools is to add your aircraft information for your new Aer Lingus aircraft to the bottom of the existing Aircraft.txt file. These aircraft need to be numbered differently than your default aircraft. The next thing to do is to open your Flightplans.txt file. Myself, I change the file extension of the Flightplans.txt to Flightplans.doc and use MS Word to edit it. It takes about a quarter of the time to load with MS Word (I have over 30,000 flights in my FS 2004).
Next you are supposed to take the information for the Aer Lingus flightplans and Copy/Paste it to the bottom of your existing flightplans file.
Next run a TTools Compile.
What could have happened in your case is that you used the Aircraft.txt and Flightplans.txt supplied with the Aer Lingus AI and compiled it with TTools (without adding this info to your existing flightplans). Now your FS 2004 sees only Aer Lingus in the Traffic.bgl file. Aer Lingus flights are flying happily around, however, all other traffic is gone.
The other thing that could have happened was that the TTools Aircraft.txt, Flightplans.txt, and Airports.txt files could have gotten corrupted during TTools Compile.
That's why I started out asking if you happened to make a backup copy of your original FS 2004 Traffic Tools files (Aircraft.txt, Flightplans.txt, and Airports.txt). You can pull the backups, re-compile them in TTools, and all of your AI flights are now restored.
If I may make a suggestion. Get Ultimate Traffic. About eight months ago I purchased Ultimate Traffic for FS 2004 ($29.95) and spent an extra $5.00 for the Spring/Summer 2004 schedule upgrade. The only thing I can say is WOW!! They use AI aircraft from Project AI (excellent quality), it's extremely frame-rate friendly, and your Aer Lingus flights are already included! You can also add your own extra AI flights if you wish by either using the Ultimate Traffic Compiler or Traffic Tools.
Two things to mention with Ultimate Traffic. First, you need to have a high speed internet connection such as DSL or internet cable. The install is huge (about 150 megs). It can be done with a dial-up type modem, however, it will take forever. Secondly, the American Airlines AI flights do not come with the base Ultimate Traffic install download because of American Airlines corporate logo copyright restrictions. There is a special install procedure for AA AI aircraft that I will be happy to go over with you if you decide to purchase Ultimate Traffic.
You can purchase Ultimate Traffic here:
http://www.flight1.com/esd-products.asp?product=utrafficJust E-Mail me or leave me a message on this forum if you purchase Ultimate Traffic and need to know how to upgrade the American Airlines flights.