Turbo Pascal for HP-IL on the HP Portable Plus

[pamphonica]

I'm sorry if I am being thick, but I am pretty new to the Portable Plus, and am struggling.

I can't get the Turbo Pascal ROM software to run. J-F's EMU41 in 2 ROMs also hangs. Yet the HP Basic I blew from the ROM image that came from the HP museum thanks to Dave Fredrickson works fine. So do all the original ROMs (Lotus 123, Memomaker etc). I've tried putting the Turbo Pascal ROM in the same physical socket as the Basic was in, but that still hangs.

So, is there something special about where these ROMs sit in the ROM module, or am I missing something about how to blow these images from Martin and J-F? Or do I have some sort of fault?

If I want to run the earlier versions of Turbo Pascal referenced here: https://www.hpmuseum.org/forum/thread-15233.html? Post #20
What magic do I have to do to get these files into a binary form to blow an EPROM?

Sorry if this seems clueless, but I am struggling, despite a lot of searching on this forum and cannot even find the file I blew originally into my Turbo Pascal EPROM!
That was downloaded from Martin H's post here:
https://www.hpmuseum.org/forum/thread-15233.html? post #10.
But I cannot see a .bin file there when I check

So any help would be appreciated.