Magento Connect Issue

[casas em madeira]

Hello,
This is my first post and I'm not sure this is in the right place, but just wondering if anyone using the magento platform has any issues installing extensions after the live site move. Our testing directory was different when we first installed magento, now that it's moved and live and has a root directory under a different url, when trying to install extensions it's still looking for our old testing directory. Any ideas how to change this. Thanks for any help.