Tip: Editing Your Process Guidance Using FrontPage 2003
In the following blog post, Randy Miller explains how to customize process guidance by checking in/out files from the SharePoint Team Portal site: http://blogs.msdn.com/randymiller/archive/2006/04/11/573525.aspx
Another direct way of accomplishing this is by connecting to your Team Portal using FrontPage 2003. Here are the steps:
1) In FrontPage, select File > Open Site
2) Type in the URL of your Team Portal (for example: http://tfs/sites/MyTeamProject)
3) You may be prompted for a password. Enter credentials that has administrator rights on the SharePoint portal
4) On the left hand side, you will see a list of the Documents on your site.
5) Expand Process Guidance, then expand Supporting Code
6) You will now see a list of all your HTML-based process guidance files
7) Double-click on any of them to edit the file