How to remove non-tilt Alenco window?

Also have Alenco windows but the bottom sash does not have a tilt window latch. How can I take out the window so we can have the glass replaced? I could not find the mechanism to release the bottom sash or am I missing something?

This video was very helpful in removing and reinstalling my ALENCO window, the inside or botton section. The procedure is not intuitive, and i would have spent quite an amount of time experimenting with removal. I was able to take this bottom section to a local glass store where they measured for a complete new glass insert, the two glass sections with the internal dividers. They will call me in about three weeks and i will take this whole section back in and they will install the glass insert.