You have to reinstall from the disk you can literally copy it over but it will be buggy. When you install from the cd it writes to the registries, when u copy it over it doesnt write to the reg. it just copies the files. It might work, and when u run it, it might auto repair itself into the registries. The safest thing to do is just use the same cd u used to install on ur laptop then use the same cd key and just install it on ur machine. The key shopuld work i do it all the time with mine, i have used my copy of office 2003 on about 5 different machines, u should be fine.
