Volk LE28N

Hey all, I'm just really curious about something, i was wondering if a set of Volk LE28N rims would fit on an 91 Mr2 T?? I was shooting for 17x8 front 17x9 back. I'm not really gonna by them cause I'm just looking for now, but maybe later on the future when i have the money. Thanks.
And can anyone tell me what an offset is?

http://www.rallysportdirect.com/shop/images/nasioc/rick/LE28NGN2.JPG

And can anyone tell me what an offset is?

http://www.tirerack.com/wheels/tech/techpage.jsp?techid=101

you can find sets of volks matched to the MR2 stagger and offset