I have emachine model t3418

Question

i have emachine model t3418 the computer was acting funny so i put in a restore cd the restore cd that came with it was for another model so it messed up my computer when i got the right restore cd it worked but everything was gone even my network adapter to connect to the internet i need to know how to locate my network adatper for emachine model number t3418 without having to purchase anything i know it is in there somewhere i just need to know where