MTTY is the 1.42 or 1.47. Both of them are OK. And I can only connect the titan in the windows XP (XP in a virtual box, host is windows 7 64 bit. Host can not use mtty to connect titan). Make sure u have disabled the usb connection in the Windows Mobile async center.
My phone has not gotten HSPL yet. Probably mine has sandisk NAND that it's different from SAMSUNG NAND.
this is the probably the reason why some of us can't get HSPL.