So I'm sure this is old news, but I'd figure I would share it anyway. I have recently discovered that the GInput mod made by Silent at the GTAForums actually works really well with the Hill Valley mod. I know for a fact that it looks great with the xbox buttons, mainly because I use a xbox 360 wired controller. I don't know how the playstation buttons look, but I would imaging they look just as good. The great part is that I didn't have to reassign any buttons in Vice City's controller options, just changed to classic mode and bam, works like a charm.
I would have made a video, but my PC isn't very good at doing videos, so sorry.
Here is the link to GInput http://gtaforums.com/topic/562765-reliiivcasi-ginput/
Make sure you download the Vice City version.
Here are some sample pics from Hill Valley 0.2e tutorial: