I used this....I assume these are the instructions you've reviewed
http://nookdevs.com/NookColor_Rooting
I spent several days going over what is in here, before making my attempt....
If you have questions/concerns about specific items in this, it would be wise to ask more specific questions (this is what I did)...and reivew the questions that may have been answered in this thread
https://www.mobileread.com/forums/sho...d.php?t=112175
I think others have used instructions that have more pictures to go with the words (it might be linked in the thread above)