I've gotten the QUCS working with a PSice model provided by TI. However it appears that there is a bug in the windows version of QUCS. There is a preprocessing utility that I'm supposed to select which converts the PSpice model to a QUCS native model. This utility is called ps2sp, which fails. However when I select no preprocessor, it simulates very well. However the output is wrong. Here are my notes and where I'm currently at with the simulation, It still not working correctly.
OK, so QUCS R0.19-snapshot has a bug when trying to use SPICE imported devices. I got this QUCS model to work by first un-installing QUCS and installing it into "C:\Qucs" note this has no spaces, and the default includes "program files" which has a space. Once QUCS is installed with no spaces, then you need tinyperl and you'll need to specify that it's installed in "C:\Qucs\bin" Notice the default will try to install into a folder which won't work. It needs to be in the root bin folder.

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Then I added a ".END" after the ".ENDS" in the PSpice file, and QUCS stopped complaining about things. Here's the files which attempt to use the PSpice model. I suspect that the linux versions would do this just fine. I think the issues I'm having are windows related. I've only found people complaining about it who were also windows people.
https://cp.sync.com/dl/4a63cdb70#rtbmyrt9-dnxg94q6-xnazzdxt-bx8y8t7a