You need to keep track of all the information for your DotNetNuke websites. Here is a suggestion for documenting what you have.

1. Create a folder structure like this.
   
   Website Dnn Host : all the DNN websites
     _dnn           : your dnn general info
     _dnn vendor    : vendors dnn general info
     dnnhost1.com   : dnn host website
       image        : work image files
       info         : information about that website
         dnnhost1.com.txt : information file
       website      : the actual website
       website dnn  : original dnn files changed
     dnnhost2.com ...

2. When changing files or folders, copy the original adding an "@" followed by the date to the end of the name. Use the "@" to mean the file is deleteable, but you are keeping the file around just in case. Instead of an "@" use an "_" to mean the file is not deleteable. A filename or folder name like file@20091122 is deleteable and "file_20091122" is not deleteable.
   
3. When you modify the web.config files, always use the @ naming convention and keep the prior versions around.
   
4. You can use this file structure to keep your DotNetNuke installation website information.

DotNetNuke Installation Website Information

------------------------------------
Domain: dnnhost1.com
Host: webhostingcompany.com
Date: 20091119
Registrar: domainregistrar.com
Ip: 11.131.12.34 dedicated
-----------------------------
ftpid: dnnhost1
ftppw: ftppassword
-----------------------------
Website mailserver
Webserver mail: localhost
Website mail: mail.dnnhost1.com
Email Addresses and passwords
postmaster@dnnhost1.com  emailpassword
send@dnnhostn1.com       emailpassword
-----------------------------
Database server
SqlServer: sql.webhostingcompany.com
ServerIP: 11.130.4.87
Database: dnnhost1_database
Username: dnnhost1_username
Password: databasepassword
Qualifier: dnn_
-----------------------------
DotNetNuke
Version: 5.01.04
Date: 20081119
Portal         Username       Password          Date   Email
============== ============== ================= ====== =====
SuperUser      username       password          091119 info@dnnhost1.com
dnnportal1.com dnnportal1.com dnnportalpassword 091119 info@dnnportal1.com
dnnportal2.com dnnportal2.com dnnportalpassword 091119 info@dnnportal1.com

By Andrew Weitzen, Bronze Inc.(c) 2010

Bronze is the publisher of several online Internet journals including: InternetHandholding.com, DomainNames.gs, DotNetNuke.bz, Programmer.bz, Software.vg, WebHosting.vg