I'll list them here so that people can see what's missing:
1 Maxwell's Silver Hammer
2 Strawberry Fields
3 Octopus's Garden
4 Yellow Submarine
5 Penny Lane
6 I am the Walrus
7 Hello, Goodbye (You Say Goodbye, I Say Hello)
8 Back in the U.S.S.R.
9 Here Comes the Sun
10 The Long and Winding Road
11 Come Together
12 While My Guitar Gently Weeps
13 Lovely Rita
14 Birthday
15 Help
16 Blackbird (two-fer with 42)
17 Shout (two-fer with 18)
18 Twist and Shout (two-fer with 17)
19 Hard Day's Night (see 20,31)
20 I'm So Tired (guy yawning, lower left)
21 From Me To You
22 Eight Days a Week (two-fer with 37)
23 She Came in Through The Bathroom Window
24 Here, There & Everywhere
25 She's Leaving Home
26 Dr. Robert
27 Drive My Car
28 Ticket to Ride
29 Fool On The Hill
30 Glass Onion
31 Fixing a Hole (guy with yellow cap)
32 Taxman
33 Carry That Weight
34 Piggies
35 Baby, You're a Rich Man
36 Baby's in Black
37 Any Time at All (two-fer with 22)
38 Her Majesty
39 Penny Lane
40 Norwegian Wood
41 I'm Only Sleeping (guy with "not dead" sign, lower left)
42 And Your Bird Can Sing (two-fer with 16)
43 Dig It (guy with yellow safety vest)
44 Helter Skelter
45 Let It Be
I'm having trouble keeping up! Also, let me know if I miss one of your answers!