OMG I had no idea this was working! lol
So I just converted all my books to mobi and fetch metedata and sideloaded (which I take to mean copy by usb cable using calibres send to device) and opened a book and moved it ahead a few pages... went to menu, (this is on k3 and pc) then went on my pc opened the same file I sideloaded synced it to last page read and it worked... i then moved forward a few pages on my pc went back to the library main page. then went on my k3 and synced it and guess what? it worked !!!
This has made my day! Gees It was a pain going from 1 app to another continually finding my last page read... ahhh bliss
anyway, do I have to sideload or would sending it by email/wifi work?