The Proxy scan or the book text itself? There's two scans of Proxy out there to my knowledge and they both seem to have all the pages complete from a quick skim through. One of the two scans which just shows a scroll of single pages has pages 87 (end of Tick) and 88 (beginning of Lazy) repeated twice, then it has the order of the pages shuffled, so it goes from page 89 to 88, then 91 to 90, then page 93 to 92 etc.
Edit: a scan of the original paperback 1999 edition is also available from
archive.org. As a sidenote, there's a nifty browser extension out there that can download books from there for
offline use too (if they aren't already available on the usual illicit ebook sites).