HERE, or on the free downloads page (see above and to the right).
I've had a blast writing these rules, trying to take a randomly generated bunch of races, monsters and treasures and making them (sorta) make sense. There are some alternate rules to try out and hopefully people who play old school rules (or new school) can find something worthwhile for their game.
If all goes well, the Complete Rules will soon be available on Lulu.com. The print book should go for $15, the PDF for $7. The Complete Rules will contain 12 race-classes, over 120 spells new to the old school, 120 new magic items, 140 new monsters, new magic rules, alternate rules for combat, equipment and encumbrance, rules for skills and knacks (i.e. a very simple skill system), a sample sandbox setting, a sample 1st level dungeon and general conversion notes for other old school rules - including adventurer, magician and warrior classes for folks who prefer to separate race from class. All packed into about 120 pages.
For now, check out PARS FORTUNA: Basic and let me know what you think.
UPDATE: I've incorporated some corrections suggested by JD Jarvis of Aeons & Auguries (and he wrote a review of the basic rules) and Gonster of Attack Plan R, one of the erstwhile followers and friends of the blog. All the links now point to the updated document.