WE FOUND IT

IT WAS BEHIND ANOTHER POSTER



07:51 Behind an ad for echo the sky
07:52 the drop itself says:
07:52 Mr. Zipp
07:52 4-25-07
07:52 Black with white font
07:52 looks like a concert poster

07:55 which isn't actually an envelope but just a poster
07:55 kind of like a concert poster.
07:55 There is a poem on it
07:55 Another Dr. Suess.

http://lonelygirl15.com/forum/viewtopic.php?t=9040”


Drop #2 guitar tabs:

Code:
E|------------------------------|-------------------------------|
B|------------------------------|------------0-------------1----|
G|------------------------------|----------------------------3--|
D|---4--4-------------------0---|------1-1---------------4------|
A|1---------------2-------------|0-3-----------2-------2--------|
E|--------3-----2-----4---2-----|----------------4-------------4|

  7 15 15 4     3 8   5   3 11   6 9  12 12 20 8 5   8 15 21 19 5 
  g  o  o d     c h   e   c k    f i   l l   t h e     h o u s e 

GOOD CHECK FILL THE HOUSE

For those confused about the guitar tab code, it is a way to translate strings and frets on a guitar into letters. Deagol explains it in this thread. Here is the full alphabet table:

Code:
12345678901234567890123456 
abcdefghijklmnopqrstuvwxyz 

E=25=y|-----------------------|------------------------|------0-1- 
B=20=t|-----------------------|-------------------0-1-2|-3-4------ 
G=16=p|-----------------------|----------0-1-2-3-------|---------- 
D=11=k|----------------------0|-1-2-3-4----------------|---------- 
A=06=f|-----------0-1-2-3-4---|------------------------|---------- 
E=01=a|0-1-2-3-4--------------|------------------------|---------- 

       1 2 3 4 5  6 7 8 9 1  1  1 1 1 1  1 1 1 1  2 2 2  2 2  2 2 
                          0  1  2 3 4 5  6 7 8 9  0 1 2  3 4  5 6
       a b c d e  f g h i j  k  l m n o  p q r s  t u v  w x  y z