Aidin,
AFAIK there have never been any revisions or updates to the A350 released to the general public, if there were it would be available from the Sony support website. I don't believe there is even provision to actually update the A350. Chances are v1.10 was one of many internal Sony releases that had very minor fixes up to the point they stopped manufacturing the camera. I cannot confirm which version mine is running but I suspect it'll be this one or close to it.
I don't think there will ever be any firmware updates for the A350, there are no critical bugs or problems that would instigate Sony into releasing anything. I don't think there's ever been any for the A200 or A300 for that matter either.
I would suggest that if the camera works, enjoy it, use it and take great pictures (oh, and post them on this website!!).
I think this thread should be closed now.
Thanks,
Peter.