[Zope] Zope wont write to anything?

[Joey D'Anna]

hey, ive got zope running but when i try to start it up i get:

Traceback (innermost last):
 File /root/Zope-2.3.1-src/z2.y, line 755, in ?
IOError: [Errno 13] Permission denied: `/root/Zope-2.3.1-src/var/Z2.pid'

it starts up fine in read only mode, but when i try to access things using
worldpilot, i get the same crap but for worldpilots files. 
all the directories are writable, and i can touch and write to the files
it mentions from bash.
could sombody *please* tell me what is going on here?
-Joey D'Anna