I don't think the format of these files was ever changed, so your mods should still work. Your problems might come from something else.
However, at least for the Beneficial and Detrimental Effects windows you could also take those from ProfitUI. In ProfitUI the icon size is configurable, but if you rip just those files out of the UI the icons will default to a 24x24 pixel size.
I didn't think they were changed either, but I have spent some time with a clean install, adding one mod at a time, to see which ones were causing the problems.