Been away - need help getting setup

I really have searched for this, so sorry in advance for asking what I know is here somewhere, but...I've been away from the sim for a couple months and am now getting back to use the ngx. I previously had the 800/900 installed.I've upgraded to sp1b and added the 600/700. I know I remember that we were to delete panel states, and co routes? yes? no?Don't need to delete liveries anymore though, correct?If I should, in fact, delete old configurations, panel states, rte files....or whatever, could you also tell me where they should be located? And are these all specific for each aircraft type or for ngx in general?Sorry, just can't remember all this stuff.Now I have to remember how to fly the airplane. :)Thanks