I've I just tabbed this yesturday and I think it's 100% correct. It should be in standard tuning and you should definatly use finger picking. These should realy go without saying.

Ok the Introduction is in two parts.

The First part

B----6------6------5------5------5-----------------------------------------------------------
G-------7------7------7------7------7------5------7------7-----5-----7-----7----5------7--
D-----------7-----7------7------7------7---5---7-----7---------5--7-----7-------5---7-----


Then

E------------------------------------8-----------------8-------------------------------8------
B----6------6-----5-----5------5-------------------------------------------------------------
D-------7-----7------7-----7---------------5------7-----7-----5------7-----7----5----------
G----------7-----7------7-----7--------7---5---7---------------5---7-----7-------5--------7

It may look abit messed up and random but it's all there and all right Im certain of it.