Hi Elysse.
If you see draft in red on a previously started inline review, the way to access it is from the Inline Posted tab of the My Reviews screen. Go to your home page and, below your picture, click on New Inline Review Replies. You should see it listed there, marked as draft. From there, you can open it and resume reviewing. It's a goofy place to have to look for it. The question comes up a lot. I'll add it to the list of issues for Sol.
The best way to prevent new reviewers from reading your story is to put a BIG NOTE in the content summary for your book and/or right at the top of your initial chapter. I just did the same for "The Rise of Connor v1". I replaced the prologue with a big note that asked people not to review it as it will soon be replaced with v2. I also made all the early chapters (1-15) inactive, to further reduce the chance of anyone new accidentally reviewing it.
Please let me know if you need any help with the latter. It involves some of the lesser used functionality of the Edit wizard but is fairly straightforward to do. I'll post your suggestions to the ongoing maintenance and minor enhancement threads in the Premium forum.
Thanks
Dirk