samba - May 2003 - Cannot see samba server from windows XP or 2000

I  recently installed samba-2.2.8a on a RedHatLinux 8.0 machine. The 
installation went smoothly and I verified that it was done correctly. 
The problem is I am unable to see the Samba server  from either windows 
2000 or XP in my local network. I did also modify the smb.conf file 
slightly, I gave my workroup a name and created a share, and some other 
modifications. After I modified the file I ran the 'testparm' command 
and got the following message:

Load smb config files from /etc/samba/smb.conf
Processing section "[homes]"
Processing section "[printers]"
Processing section "[data]"
Loaded services file OK.
ERROR: lock directory /var/cache/samba does not exist
ERROR: pid directory /var/run/samba does not exist
Press enter to see a dump of your service definitions

I am not sure if there is something I need to do to rectify the two 
errors I am getting.

  Also, if I uncomment the line -       
*passwd:*all*authentication*tokens*updated*successfully*   in the 
smb.conf file and run 'testparm' I get an additional error :

"Ignoring  bad line in conf file...(referring to the line above).


Thankyou in advance for your help.

-nadia

nparkar@umich.edu