If you know how to make custom content then you can. Mod the Sims has a "how to" tutorial on custom content.
You can't unless you have Sims 2 Pets. Double Deluxe has Vampires, not Werewolves.
Download cc (custom content) Search it on Google.
Yes you can. Just Make sure that you have installed the sims 2 double deluxe first, then install Universty.
No
No, Double Deluxe is Sims 2 + Sims 2 Nightlife + Sims 2 Celebration Stuff
the sims 2 double deluxe is the sims 2 + the sims 2 nightlife + the sims 2 celebration stuff pack
they aren't cheats. they are downloads. you can find hair for your sims on modthesims2 dot com. they have tons of items to download.
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Sims 2 double deluxe? yes sims 2 children grow up.
Uninstall the Sims 2 you already have and then install Double Deluxe
play some music or listen to your MP3
Their is no way way to make a teenager pregnant on sims 2 double deluxe sorry :)