problem on installing build-essential package

When trying to install build essential package i got below errors.
build-essential: Depends: dpkg-dev(>=1.13.5) but it is not installed
g++ : Depends g++-4.0(>=4.0.3) but it is not installable
      Depends gcc-4.0(>=4.0.3) but it is not installable

also getting error of broken count as 2 packages are having unmet dependencies.

Please someone tell me how to remove these errors.

Also please tell me all steps and path of downloading build-essential package for ubuntu10.10.
I can not install it on ubuntu by cd or internet as still my ubuntu not supporting internet connection.
I can download it on windows then use in ubuntu..

Please suggest me the way