UG! I am going crazy here... NFS stuff

[Eric Linenberg]

Here is the deal.  I am trying to mount folders using NFS and want foll 
access read/write/execute the whole 9 yards.  The /etc/exports file on the 
server looks like

/usr/local/mpi       * (rw,no_all_squash,no_root_squash)       #public 
directory amongst the machines
/usr/local/lstc      * (rw,no_all_squash,no_root_squash)       #public 
directory amongst the machines
/usr/local/lam       * (rw,no_all_squash,no_root_squash)       #public 
directory amongst the machines

and the /etc/fstab files on my nodes looks like 

LABEL=/                 /                       ext2    defaults        1 1
/dev/fd0                /mnt/floppy             auto    noauto,owner    0 0
LABEL=/usr              /usr                    ext2    defaults        1 2
LABEL=/usr/local        /usr/local              ext2    defaults        1 2
none                    /proc                   proc    defaults        0 0
none                    /dev/pts                devpts  gid=5,mode=620  0 0
/dev/hda7               swap                    swap    defaults        0 0
10.0.0.1:/usr/local/mpi   /usr/local/mpi          nfs     
rsize=8192,wsize=8192,exec,suid,rw      1 1
10.0.0.1:/usr/local/lstc   /usr/local/lstc      nfs     
rsize=8192,wsize=8192,exec,suid,rw      1 1
10.0.0.1:/usr/local/lam   /usr/local/lam          nfs   
rsize=8192,wsize=8192,exec,suid,rw   1 1

but if I ssh on over to the machines as root or anyone for that matter and i 
try and do anythign like a 'touch aaa' it gives me a 

[root at snickers mpi]# touch aaa
touch: creating `aaa': Permission denied
[root at snickers mpi]#

PLEASE help!?

thanks,
eric