Um... 1.10S deletes *everything?*

[hakai_no_tenshi]

There was apparently some problem with how items were saved in 1.10.  They fixed this in 1.10s, and about all items were removed from 1.10 characters as a result.  If they hadn't fixed it in 1.10s, you'd just have the same unpleasant surprise when they eventually did fix it.

They could have made a utility that converts items, but they didn't.

ATS will do the conversion for you. http://www.luminatrix.com/ATMA