Did you move just your saved files (file1.rpgsave, file2.rpgsave...) into "www\save"?
Games like that (I mean, made with RPGM MV/MZ) do not detect automatically your saves: they need also the file "global.rpgsave".
If you don't have it anymore, start a new game, save your progress (as many times as the number of your saves, and in the corresponding slots), open the folder "www\save", overwrite the freshly created saved files with yours and load them.