Hey guys!!! Ok i need help!

When I try to install limewire an error comes up when its downloading an ISScript or something. It says,

an error occured while downloading http://www.installengine.com/cert02/.../isscript.msi.

And it says to either retry or to cancel.

If i try to retry it says the same thign and if i do it again nothing happens.

WHAT DO I DO!!