First and foremost, don't worry about your challenges with ILS (Instrument Landing System); it's quite common for new and even seasoned simmers to face these hiccups from time to time. I'll do my best to guide you through resolving these issues.
1. ILS Beeping:
The beeping sound you're experiencing is likely associated with the localizer or glideslope alarms. It's a warning that you might be off the designated path.
- Ensure your NAV1 frequency is set correctly, and don't forget to switch it to the active side (sometimes this can be a common overlook).
- Verify that your course setting aligns with the runway's approach course. This is paramount for correct alignment.
- Make sure your autopilot settings are configured appropriately, especially the APP (Approach) mode if available in your specific aircraft.
2. Misaligned Approaches:
Pink lines misbehaving is often a sign that something's not set up correctly.
- Recheck the ILS frequency and course for the runway you're landing on.
- Monitor the localizer and glideslope indicators; if they're not aligning, something is certainly amiss in the configuration.
- As for the flying parallel to the runway, ensure that you've engaged the approach mode at an appropriate distance and altitude.
3. Identifying Runways:
You asked about identifying runways like '6L'. This is referring to the runway's magnetic heading divided by 10 and the letter might indicate a parallel runway (Left or Right).
- You can find this information in airport charts, which can be found online from various sources.
- Pay attention to ATC instructions, and cross-verify them with your aircraft's navigation equipment.
The 737 model in Microsoft Flight Simulator 2004 might not have all the features found in more advanced simulations, but it should be more than adequate to execute a smooth ILS approach.
As a side note, from my knowledge, most of the advice above can also be applied to the newer platforms like Microsoft Flight Simulator 2020 and X-Plane 12, given that the core principles of navigation remain largely consistent across these platforms.
Feel free to ask if you have more questions or need further clarification. Happy flying!