Ok to get any application all you have to do is click the "Applications" tab on the very top left and in there click on "Add/Remove Applications" (the bottom one) and there will be a box where you can choose what you want to search for and choose "All available software" and then simply search for Wine and Beryl.
Wine is really easy to use all you have to do is download a compatible .exe file (there's a whole website which show you what programs are compatible just google it) and open it with Wine and it will install just like in Windows.
Hope that didn't sound too confusing