James:
Presuming you want to include the date somewhere on the Bar Chart (vs seeing it on the table side of the View):
1. Go to Format, Bar Styles... (make sure you pick Bar STYLES - which changes it for the entire chart, vs. Format, Bar, which changes a single bar on the Gantt chart).
2. Select the type of bar (ie Task) for which you'd like the date to appear.
3. In the Bar Styles dialog box, select the Text tab.
4. Click on the area of the bar in which you'd like your custom date field to appear (Top, bottom, left, right, inside). A drop down arrow will appear to the far right of that field. Use it to select your custom date field.
5. Click OK.
By the way - you can use this process to add any field available in the drop down list to the Gantt chart...
Hope this helps!
Jan