What body parts will fit both bikes? I have an 01 and found someone with 03 parts( body,tank,wheeles,and a few other pieces)?

Most body parts should interchange, mounting-wise.
The '03 has different accents for the font cowling (fairing) compared to the '02 and earlier which look similar.
I think the accents for the lower fairings may be slightly different as well as I've heard they changed the size of the lettering and placement.
Physically, they should work.
The lower inner-cowling is different on the SP1's and SP2's due to oil cooler placement.
The SP1's had the oil cooler mount horizontally and the SP2's are mounted vertically and to the left side. The SP2 lower cowling has the opening and screen for oil cooler ventilation.

Thanks for the info.I've seen differnt part #'s for the rims and I've seen some say rims will fit all years.

You may already know, but SP1's used 6-spoke wheels whereas SP2's use 5-spoke.
That was one of the weight saving ideas during the redesign.

Thanks again. As long as it will fit on my 01. The less weight is just a bonus. like i said a guy has some 03 parts that i need for a good price. This includes both front and rear rims complete.

Amen to dat