To answer Udai briefly, HM doesn't work because Julio has lost all interest and doesn't release messages. I received a message from him in March making vague promises "when he got back from Argentina". I have given up waiting and feel justified to resubmit my message here, where in any case, all my friends seem to be gathered.
I actually do not precisely understand Udai's other point, but direct you again to my first message posted on HM in January, where I try to make clear my gratitude to the translators for their efforts. I will mention that since then I have uncovered another translation by Ali R. Amir-Móez, of the same (apparently) work, but published in Scripta Mathematica (Sept. 59) under a completely different title, "Geometry of Omar Khayyam: Discussion of Difficulties of Euclid" . Amir-Móez English will not embarrass a poet, but he commits the unpardonable crime of transliterating into modern algebraic symbols. Neither translation includes any information about the source text. The translations deviate at several points, so it may be the source text is different. The Amir-Móez should be more accessible, but I can provide anyone interested with a text file of books II & III of the other translation.
Regards, Bob Robert Eldon Taylor philologos at mindspring dot com