I just installed a new hard drive in my sis' dimension 8300.  It is a pentium and for some reason I thought it had wireless.  The configuration says "Card, Planar, Dimension 8300 Audio 5.1/Network Interface Card.   Does this mean it is wireless?  There is no aerial sticking out the back.

When I go to the devices and drivers section on the computer, and there are NO yellow highlights, does that mean I have downloaded everything this computer needs to work properly?  The driver/download page lists only one modem driver when I enter the service tag no.  But, there are over 50 others drivers available.  

Thank you!