By far the simplest solution is to get an EQDIR cable.
http://www.bintel.com.au/Mounts---Tr...oductview.aspx
You can use the PC-Direct function in the Synscan hand controller, you will need the firmware update cable that came with the mount, and attach that between the Handcontroller and a USB/Serial cable into the laptop or into a serial port.
Plenty of info on the eqmod yahoogroup or from the eqmod website.
http://groups.yahoo.com/neo/groups/EQMOD/info
http://eq-mod.sourceforge.net/
Don't try and connect the PC cable directly to the mount, you could damage your mount.