How i got mine working.
I installed it using dropbox. I put my apk file in dropbox, then i install it. Then i go to my sd card using root explorer, there is a folder called dropbox which the apk gets copied to. I copy and paste the apk in \system\app and then it still didnt work, so i went to the file, mounted as r/w in root explorer, then you long hold on the file name, and it gives the options of "permissions" which you select and then i checked all the boxes. I rebooted after that, which at this point you can use nook tools to set the keyboard.
Now that i helped with all that, how in the hell do you use this thing? I saw videos of swipe, and it looked amazing, to me this thing is like a regular keyboard although i can draw lines through it, it just has no clue what i am trying to type. maybe i will search for a tutorial or something.
Update: found a userguide http://www.mobiletextinput.com/Product/SlideIT/Manual/Pdf/SlideIT_UserGuide[English].pdf