Pictures of roots

[Helen]

Hi everyone,
I finally found a way to upload some pictures. Hope this website works (please forgive me if it doesn't). firsttimerorchids.snapfish.com/snapfish

Now for my 2 questions.
1. Is it okay that my new roots have turned a bit brown on the tip and white at the stem? They are of course green in the middle section.
2. I hope you can make out the picture of these new roots that are growing higher up on the stem (much higher than bark line) ...is this okay? or should I raise the bark level...if I do then the bottom of the psuedo bulbs will be covered. I think this is a really dumb question now that I'm typing it out....

I hope you can understand what I mean.
Thanks
FT