Welll thee thinng izzz iff imm gonnna telll ewww wheerree diss izzz gonna bbb thenn eww mitee turrnn upp andd shoow mee upp wivv urr 1 leegaaass

 Hey, its a google program so its free just click the link, its called google sketch up and there are lots of free trails building jumps and stuff is really easy, just watch some tutorials
there are some tutorials on this link i think....http://sketchup.google.com/

 thanks dude. i found it out last night and im building a trail. sooo sick, its fun trying to figure stff out, im too stuburn to watch a tutorial

 when i make a curved jump, it never fills in the top, so i have to fill it in so it looks like 2x4s. How did u make the top on curved jumps solid?

 Just use the pull/push tool to pull the back of the jump out

 yeah haha the scale got a bit messed up on it tho, cos look at the little guy by the top left roll in then everything else haha

 hahaha didnt notice

 lol yeah hes meant to give an idea of scale, which shows how out of scale the whole thing is haha

 i downloaded this yesterday and im shit at makin stuff lol

 i thought it was quite easy to get the hand of lol but we use it in school for engineering lessons so i had some help...