In spite of the old message warning I'll post this in case anyone cares to give it a try. I used the bat routine to sucessfully get my sn 1010..., f/w 1.5 - upgraded to 1.7 - rooted. I've used the install bat file to load a number of apps - launcher, browser, library, market (not sure about this one), crossword, and a few others - also successfully. I admit it was a bit of experimenting as well as consulting this forum to get some comfort with using the rooted nook. I now can cycle between BN's and rooted's menu screen and am very pleased so far with it and most of the now new and usable apps.
If you still read this, jackr and others whose tips I used, you did good!