[CentOS] I am confused. Chmod / chown issues?

Where did I go wrong?

[root at mail busdev]# stat .
  File: `.'
  Size: 4096            Blocks: 16         IO Block: 32768  Directory
Device: ah/10d  Inode: 147591      Links: 5
Access: (0750/drwxr-x---)  Uid: (56755/  busdev)   Gid: (56755/  busdev)
Access: 2008-01-06 15:49:53.000000000 -0500
Modify: 2008-01-06 15:49:15.000000000 -0500
Change: 2008-01-06 15:59:59.000000000 -0500

[root at mail busdev]# grep ^jpyeron: /etc/group && grep ^busdev: /etc/group
jpyeron:x:500:
busdev:x:56755:jpyeron
[root at mail busdev]# su jpyeron
[jpyeron at mail busdev]$ ls -al
ls: .: Permission denied
[jpyeron at mail busdev]$ exit
[root at mail busdev]# uname -r
2.4.21-37.EL
[root at mail busdev]#

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-                                                               -
- Jason Pyeron                      PD Inc. http://www.pdinc.us -
- Sr. Consultant                    10 West 24th Street #100    -
- +1 (443) 269-1555 x333            Baltimore, Maryland 21218   -
-                                                               -
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