I hope that I have understood the question properly. If not post again.
I am using Word 2000 and I would do it this way.
Type in Table of Appendices for the Title and move typing cursor to next line. Click on Insert and then on Index and Contents.
On the next dialogue box, click on Table of contents' tab. Change the number in the 'Show Levels' box to 1.
Click on Options button at bottom of the screen.
In Table of Contents Options dialogue box, delete out the 1 from the box next to Heading 1. Scroll down the list of Styles until you see your Appendix style name. Click in the box to the right of the name and type in 1.
Click on OK on the Table of Contents Options dialogue box.
Click on OK on the Table of Contents dialogue box.
Your separate table of contents for the Appendices should now be included in the document.