The Verses:
  G   C                  Dm              G
E|-------------------------1---------------3----------|
B|-------------------------3---------------0-----------|
G|-------------------------2---------------0-----------|
D|-----------------------------------------0---------|
A|---0-3-0-3-------------------------------2----------|
E|-3---------------------------------------3----------|

Repeat above

  G    C        Dm  F  C  E (this E is strummed backwards)
E|-----------------1--1--0------------------------|
B|-----------------2--1--1--0----------------------|
G|-----------------3--2--0--1--------------------|
D|--------------------3--2--2------0--------------|
A|---0-3-0-3-------------3--2---------3-2----------|
E|-3------------------------0-------------------|

                      Riff A
(A)         Am7      (            )     C
E|-----------0------0----------------------------|
B|-----------1---1--1---1----1----1---1--1-1------|
G|-----2-----0---0--0---2----2----2---2--0-0------|
D|---2-----------2------3p2--3p2--3p2-3--2-2------|
A|-0-------------------------------------3-3------|
E|------------------------------------------------|

The Solo:

E|-20\-----------------------------------------|
B|---------------------------------------------|
G|---------------------------------------------|
D|---------------------------7-5------------------|
A|---------------3---(5)/7---------------------------|
E|-----1--3---/5-----------------------------------|



E|--------------------------------------------------|
B|--------------------------------------------------|
G|-8b7p5----5-7-5--7b8-7b8p5--7-5-7b8-8-8b7-----------|
D|-------7----------------------------------7-5-7---5|
A|--------------------------------------------------|
E|--------------------------------------------------|


E|----------------------------20\-------------------|
B|--------------------------------------------------|
G|-7b8b7-5--------7b8b7-5/---------------------------|
D|---------5-7-5-------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|




E|-10-12---9--10-12-13-15-13-10---20-19-17----------|
B|-12-13---10-12-13-15-17-15-12---------------------|
G|--------------------------------------------------|
D|--------------------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|



E|-15-12-17-15-12--12h13----10h12-------------------------|
B|----------------------15--------13---13h15---------------|
G|-------------------------------------------14-14h16-12--|
D|--------------------------------------------------------|
A|--------------------------------------------------------|
E|--------------------------------------------------------|



E|--------------------------------------------------|
B|------------------------------13-13---------------|
G|-12h14-10---10p9-10p9-10p9-10---------------------|
D|--------------------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|

E|-13-13p12-13p12-13p12-13/20--20---1-1p0-1p0-1p0---|
B|----------------------------------1-1---1---1-----|
G|--------------------------------------------------|
D|--------------------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|



E|-0--0--------------------3---------------------------|
B|-1--1-----------------------------------------------|
G|-0--0-----------------------------------------------|
D|-2--2------0-----------------------------------------|
A|-3--3------2-----------------------------------------|
E|-----------3---------------------------------------|

Then repeat the verses.


For Riff A: Make a Am chord as usual and use your pinky finger
to hold down the 3rd fret on the 4th string and pull off
repeatedly.

Added Bonus:

  Benous Tardes Amego (uh, that mexican Ween song from the 
same album)

The chords:
Am G Am
Am G Am
Am G Dm
Am G Am