tagging problem

[Sangeetha Parthasarathy]

Hi,
I am trying to tag a particular module in my src directory inside
package one/two/three/

I used the command   cvs rtag -n -r versionNumberOne SManager

But it won't work. I tried the same without the -n option. It still
would not work.
Please let me know how I am to tag the module.
Thanks
Sangeetha