I'm sorry if this is the wrong topic, but I'd just like to know if the content for sims 2 would also work for sims 3. Thanks so much!

Okay, I'm sorry if something like this has been asked a million times before.......

My sister's birthday is coming up and she is going to get a Sims 2 Bon Voyage Expansion Pack when the newest expansion pack currently installed on my computer is Seasons. Will I need to delete all my custom content installed for Seasons? If so, how do I do so safely? Thanks!