Janes Addiction - Wrong Girl Bass

Chaney plays with a pick, I mostly do as well but I play this with just 
one finger, It adds a nice feel I think.

Tuned down 1/2 step   

First, main riff
G|---------------------------|
D|---------------------------|
A|------------7775-5--5-44---|
E|-777\--777\-------77----52-|

Then something like this, 

G|---------------------------------------------|
D|---------------------------------------------| Repeat except play
A|-4-44-7/16\7--4-44-7/16\7--4-44-7/16\7--4444-| D instead of Db at 
E|---------------------------------------------|      the end

Main riff

I'm not positive on this third part, I just adlib the main riff. 
Here's what I play if you can make any sense out of it.
G|------------------------|
D|------------------------| I repeat this a few times.
A|------5h7p5---5-7-5-----| What Chaney plays sounds like a pentatonic
E|-2/77-------7-------5---| riff of E.
B|---------------------7--|

Back to main riff,
Slide riff,
Main riff again,
Then pentatonic thing again

At the bridge I play this.
G|
D|
A|----------------------------------|
E|-2-333-5-2-333-5-777-0-15-15-15\--|

Pentatonic riff during solo follows along with the guitar. I'm lost here.
Slide riff one last time then the pentatonic thing again to the end.

It's my first attempt, if someone could help I'd appreciate. E-mail me thoughts