Getting access of my project kept in one 121.12.12.125 node

sir.. i am working in a WAN......
i am getting the login screen for an application by typing the address of the location and the file name "http:/121.12.12.111/xyz.html" from the node 121.12.12.125.

now i had my web applicatioon at 121.12.12.125 for which i have taken the source code of the above .html document and modified the parameters to my requirement and renamed the html document as pqr.html and tried to access the same from another node..121.12.12.140.....by typing the address as http:/121.12.12.125/pqr.html...................

and i am getting page cannot be displayed msg....
i have kept the pqr.html at c:

whether i am correct?
pl.. guide for getting access of my project kept in one 121.12.12.125 node
from another node 121.12.12.140