resizing a vector in illustrator cs?

I have only just got into using illustrator, after using photoshop for ages and getting bored with it, I have just made a vector image taken from a stock photo >here< at the moment it consists of 4 layers, one background white layer, a layer which has all the colour fills on, a layer with the outlines on it, and a final layer with some touch ups.

I realise now I should have made it in a much bigger size as I have been working on it at 400% and then scaled it down again on the nav and it just looks pathetic.

is there a way of resizing it as it is? or would I have to mess around with different progs and file formats?

I have had a quick browse to see if theres a thread on this subject, but cant seem to see anything of use

all help appreciated.

thank you's in advance.

you should just be able to scale the entire image as is.....since its a vector it wont break up....so just go select>all, then transfrom>scale...and be sure to hold shift ( i believe) to scale it proportionally

If you double-click the scale tool, make sure you have "Scale Strokes and Effects" checked.

In future this will be the default unless you turn it off again.

thankyou so much you guys