PocketMatrix

I would like to use std::vector. Can I use "using namespace Frog" and "std" together? I try to wrote std::vector<int> test; and complier, but I got an error message: 'std' : is not a class or namespace name. 'vector' : undeclared identifier.... Can anyone help me please, thanks a lots.

I downloaded 4.5.3 and put "..\STLPort-4.5.3\stlport" to the bottom. Then, it's work.
Sorry for my poor english, i should ask my english teacher about top and bottom first.
Thank you very much for your reply again.