there are several ways to play the first riff: heres a few
E|---------12--------12-------12-------10--------12-------10-----------|
B|----12h13-----12h13----12h13----12h13-----12h13----12h13-------------|
G|--14--------14-------14-------14--------14-------14------------------|
D|---------------------------------------------------------------------|
A|---------------------------------------------------------------------|
E|---------------------------------------------------------------------|
       *you dont have to hammer the to the 12 just makes it easier
E|----------12---------12--------12--------10--------12--------10------|
B|--10h12h13---10h12h13--10h12h13--10h12h13--10h12h13--10h12h13--------|
G|---------------------------------------------------------------------|
D|---------------------------------------------------------------------|
A|---------------------------------------------------------------------|
E|---------------------------------------------------------------------|

E|---------12--------12--------12------------------12-----------------12--|
B|----12h13-----12h13-----12h13-----12h13h15--12h13-----12h13h15--12h13---|
G|--14--------14--------14--------14--------14--------14--------14--------|
D|------------------------------------------------------------------------|
A|------------------------------------------------------------------------|
E|------------------------------------------------------------------------|
(you get the point)

this is the cool tap sweeping lick thats sweet
ill just give you position and stuff you can figure out how it goes pretty easy
  *tap the 17
E|---17h12h8-----8---| repeat this a couple times
B|----------10-10----|
G|------------9------|
D|-------------------|
A|-------------------|
E|-------------------|
   tap
E|-17h15h12------12--| repeat
B|---------13--13----|
G|-----------12------|
D|-------------------|
A|-------------------|
E|-------------------|
     tap                   tap                  tap
E|---15h10h7-----7----|---20h17h13------13--|--20h15h12-------12--|
B|-----------8--8-----|-----------15---15---|----------13---13----|
G|------------7-------|--------------14-----|-------------12------|
D|-----r| epeat---------|---------------------|---------------------|
A|--------------------|---------------------|---------------------|
E|--------------------|---------------------|---------------------|


you can play this one different ways too but this is easiest
E|----------------------------------------------|
B|----------------------------------------------|
G|----------------------------------------------|
D|---------12--------10--------12--------10-----|
A|-10h12h14--10h12h14--10h12h14--10h12h14-------|
E|----------------------------------------------| X2then just move up 2 frets
                                                            each time
E|-----------------------------------------------------------------------|
B|--------17-----17-----17------17------19------19------19------19-------|
G|------17-----17-----17------17------19------19------19------19---------|
D|----17-----17-----17------17------19------19------19------19-----------|
A|--19-----19-----19------19------21------21------21------21-------------|
E|-----------------------------------------------------------------------|

E|------20~/--22-20-19-20~/---------|
B|----------------------------------|
G|----------------------------------|
D|----------------------------------|
A|----------------------------------|
E|----------------------------------|