Altitude versions above 1.11.0b ONLY support the new MTL for MSFS available on https://mtl.ivao.aero/installer
Starting with version 1.11.0b Pilot Core will launch automatically when you launch the Pilot UI. You will still have the option to create a shortcut of the Core to your desktop in case Core is not launched automatically.
On IVAO, there are a few way to find the ATIS frequency of an airport:
Usually, ATIS frequency on charts could easily be found on the AERODROME page.
More info about Aerodrome Charts.
On Altitude, it is possible to see the ATIS freq of the airport. If it exists, on the Nearby ATC List
You can open this List using the ATC button on the Altitude Client.
By clicling on the Arrow, you can choose to TUNE ATIS COM 1 or COM 2 as seen above.
On webeye, it is possible to see the ATIS frequency when clicking on:
When you tune the freq to COM 2, you must also enable Receiveing on COM 2.
Once Receiving (RX) is active, the button will become green.
If the frequency does not turn orange as below, this might mean that the ATC Station is not transmitting Voice ATIS. They might be using an older version of Aurora or other old clients.
Frequency will not turn blue when listening to Voice ATIS on Altitude.