Well, this is so annoying. I went to check the Manila spreadsheet that spans a bunch of months, and somebody had deleted me off of it! I guess that's the problem when it's open for all to edit.
Sorry about that, I was indirectly responsible for that.
See, it's bugged me for a while that there are so many spreadsheets running around. There is the one you mentioned, 3 others from early 2012, and the partial March-April which is named February (no idea why). Then there are Manila people who are on the monthly sheets but not on the Manila ones. And to top that off, they are all in different formats, different states of completeness, etc.
So I decided to grab all the Manila data from all the 2012 sheets and jam them into the newest sheet (the May-Oct one). After going through all the reformatting and such I called it a night intending to add some statistics the next day when someone (the owner of the sheet presumably), removed all the added data. I have to admit I was annoyed, but it isn't my sheet so I can't really complain. It must have been at this time that your entry was lost.
Lucky for me that I had downloaded a copy and now have it online (with a lot of reformatting and simplification). I added in some stats and the data portion of the sheet is editable so people can update their stats. The link is:
https://docs.google.com/spreadsheet/ccc?key=0AtCLbbZupkY_dHJRT2R1alhXS2xaUzFTcHZsTUhVbHc
Over the next week or so I'm going to pop a message into all the monthly Manila threads for people to add/update their info if they wish. As for anyone who doesn't agree with my idea of a combined Manila sheet you don't have to use it. Use whatever you like.
Oh, and if you check it out, you may notice a pattern over the top part of the sheet with the stats. Those are protected cells. Just go to View and turn off "Protected Ranges" and the pattern will go away.