Self-publishing, Table of Contents & Index Challenges

I want to get my book of comic poems loaded up onto Lulu.com . I spent hours getting the table of contents and index of titles and index of first lines with the correct page numbers.

The heading size has been keyed in so that sections are heading size one, titles are heading size two, and first lines are heading size three. Every first line should be tallied with the correct heading size. However, now the list seems to have reverted to the uncorrected version. Footnotes and author's notes are listed as first lines.

Maybe I've loaded up the wrong earlier version. How do you keep track of several revised versions of the same document?I've tried listing poems in number order like musicians' musical works. So that even if you change the title the number is the same. The largest number is today's poem and the earliest number one is the earliest poem.

Then I get muddled because the front cover's latest version is version 13 but the back cover was revised less often so I have it under version 11. Should I re-save the back cover as version 13 to co-ordinate the numbers?

I've listed documents as version one and version two. And by date order. So then I can easily find yesterday's version. I need to have a rest and then some coffee and come back to the problem with a clear head. My writing course is in a month and I want a book to take to the course and sell.