Xbox 360 Tools Achievement Unlocker

[UWSCSS]

Something unusual happened while I was setting dates for individual achievements I was unlocking. I was unlocking 3-4 achievements on a game and setting legitimate looking time stamps for each one but they didn't work. After I unlocked the 4 achievements, arranged them in the order I wanted and gave them dates, saved my profile, resigned/rehashed everything, put it back on my Xbox HD, it changed all the dates of the achievements I unlocked to the present day (today) including all of the other ones I previously unlocked at an earlier date. It basically rewrote over what I had just wrote and changed all of the other dates in the process, but now I can't seem to reverse it.

So for example I unlocked 4 new achievements and put a stamp of...

01/01/2011 9:01:00 PM
01/01/2011 9:02:00 PM
01/01/2011 9:03:00 PM
01/01/2011 9:04:00 PM

and let's say I already had a few like this...

01/01/2010 9:01:00 AM
01/01/2010 9:02:00 AM
01/01/2010 9:03:00 AM
01/01/2010 9:04:00 AM

Now they all look like this when I reopen my profile in Achievement Unlockerwith today's date right, but time wrong...

07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM
07/16/2012 09:44:40 AM

So what the problem is that on Xbox.com under the activity section, all of the achievements I unlocked newly have today's date which wasn't supposed to happen (but it's fine, they are achievements I could have unlocked within a few minutes of themselves anyways so it's not a big deal) but on my Achievements section on Xbox dashboard, ALL my achievements for that one game are now showing the date they unlocked as 07/16/2012 and in the Achievement Unlocker it won't let me locked the achievements and reopen them to change their dates. I don't know what to do cause now one game which I do play legitimately got all screwed up and all the dates have been changed. Does anyone know if it's possible to reverse this or know if there is a method to get the time stamps to save properly?

ps. I am doing these tests on a non-gold account so it's not the end of the world. It's an old profile my girlfriend used to use a while back so I have legitimate achievements unlocked on it, which is why I test on it.