Ive been trying the same myself.
Sybase doesnt work you have to use mssql
Its going to need a little hard graft. From what I can work out, I added the mssql, but the SQL needs formatting
The ` needs eliminating
The ? needs wrapping with "?"
and the fields need wrapping with [field]
I'm working on it, but its a headache.
Ive been working on the function convert_query in tikidblib too.
But at the moment, Im at the same stage with exactly the same message as you.
btw. I got the installer to run ok