I have had similar issues, basically SIMS works but other older modules fail.
I was told by Capita that Solus3 is designed to be an update tool rather than an installation tool.
I installed SIMS using the SIMSinst.exe from the setups folder on the SIMS server then Solus keeps it updated and the older modules all work.
i have found Solus3 deploys SIMS fine except for users that need the additional modules.
i hope this helps.