They used the title song written for the movie, "A Giant Leap", "A Mother Doesn't Matter Anymore", and "Let's Settle Down". I must admit, I really like the song "Bye Bye Birdie", mainly because I have memories of watching the 60's movie with my mom when I was little, and I really liked it used in that scene with the girls in the malt shop. However, the other three songs really serve no purpose, except to waste time. Seriously, what point does "A Mother Doesn't Matter Anymore" have except to give Tyne Daly more screentime? I love the woman, I liked her in that role, but I abhor that song.
I think there may have been a reprise somewhere too, one that I don't think was originally in the show...I want to say they gave Jason Alexander a short number based on "What Did I Ever See in Him" recovceived as "What Did I Ever See in Her"...or maybe a "Talk to Me" reprise? It's been forever since I've sene that movie, it has such little going for it for me.
"Your lyrics lack subtlety! You can't just have your characters announce how they feel! That makes me feel angry!"