Wet roots on my Phal?

[whitetshirtguy]

Hello everybody!
I'm new here and I'm new to orchids in general, and I have no experience at all on either orchids or gardening.
A few days ago I decided to try keeping an orchid, so I went to a nice place here in Brazil and got the one I thought looked best. It's a Phalaenopsis Nivacolor.
It came on a plastic vase with draining holes just on the bottom. I placed the vase on a little plate because I don't want my desk to get all wet. That's ok, right?
It has some green roots coming out upwards from the media. Now here's my question:
When I first watered it, a couple of days ago, I noticed there are a couple of roots coming out from the draining holes at the bottom of the vase. These roots, unlike the upper ones, are brown and weird. I read somewhere that the roots shouldn't be too moist, because they can rot, but since they're on the bottom, I'm placing the vase on top of them and they're always in contact with the drained water that goes to the plate. Is that normal? Should I cut them out?

Here's a picture:
http://img62.imageshack.us/img62/4389/img0054vq.jpg

Thanks in advance for your help,
W.