You will install Wine from the WineHQ APT Repository with Synaptic, To do this, you need to configure APT to look in the right place for the Wine packages, as outlined below.
In GNOME, click System, then Administration, then Synaptic Package Manager.
Select Settings->Repositories.
Then click add, select custom, and enter the following:
deb http://wine.sourceforge.net/apt/ binary/
Then, simply click reload.
Next search for the package 'wine' for installation.
Finally, click Apply to download the package and install it.