www.modelersite.com actually has ref. pics of this car that you can buy. They sell them in a pdf file and call them "pdf notes". There's all kinds available, and each package is usually about 1 British pound. I just bought several packages from them (including the F-2001 pics) and think they're pretty decent.
The link to all of their pdf notes is http://www.modelersite.com/Pdf_notes.htm
The F-2001 pics are primarily of the engine/rear suspension area. I'm trusting that they're of the 2001 car, because I really don't know how to tell the difference. However the intake scoop is on the engine, so you can't really see much of the top of the engine.
Also, check out www.scalemotorsport.com. They sell copies of the March 2002 issue of F1 magazine, which has an indepth article and pics of the F-2001 car. ( go to "Other Great Stuff," and then click on "Research Material"... it should be second on the list). I also have this mag/article!!
Just as another plug for SMS, they have a reference CD full of Enzo pics for $15.00. I ordered this and cannot begin to describe how many good pics there are. If you're looking for Enzo reference/detail pics, this is a must.
Good luck
Murray