hi, i'm still very very new in xsi. i plan to use xsi for my project but the problem is i don't much about it. my project is about human artery system in which i need to model the whole system in 3d and must show how the blood flow in the artery together with its rate of flow. and one more thing, the rate of the blood flow must be based on the calculation using some formula and the input must be supplied by the user. i need a lot of advice from you all... i need to know what should i know and where could i get those knowledge/skill. please reply me ASAP... thank you