My apologies for not explaining how to view the microfilms, even after I said they were tricky to use (that is just me being an idjit).
Accessing: For access to them, I believe a familysearch account is required but not membership within the Mormon church (which I am not part of). As hallmark says, on the web page with the indexes, click the small camera icon to the right of the index or deed range. The list is rather long, and is organized by name indexes, then land indexes with the deeds appearing all the way down at the bottom of the page.
Navigating/Researching: Within each index, the volume appears to the right of the name then the page or record number (early volumes have both a page and record number, later volumes are ordered by case numbers without page numbers). On certain indexes, the names are all together with the year appearing to the right; other indexes are year by year. To my best knowledge they are all alphabetical.
Cautions/Tricky Areas: The first tricky part is that each microfilm may contain a couple indexes (like letters J through S) and it is sometimes necessary to click on the multi page view and zoom out a bit to see where the microfilm has title slides appearing within. (This also touches the deed book microfilms.) The second tricky part is that it is probably best to write down a complete entry to look up (including date), as some microfilms have the records organized by case number with the pages out of order numerically. It can be a little time consuming in the early volumes to track down each name, as townlands are not listed until the 1830s if I recall correctly.
Again, my thanks to hallmark, for filling in BallyaltikilliganG on this.