installing sims 2 in order

Here is the order that The Sims 2 should be installed in:

• The Sims 2™ (or Sims 2 Deluxe, Sims 2 Double Deluxe or Sims 2 Holiday Edition, whichever you have)
• University (or University Life Collection)
• Nightlife (disregard if you have Sims 2 Deluxe or Double Deluxe)
• Christmas Party Pack (US) OR Holiday Party Pack (UK)
• Open for Business or Best of Business Collection
• Family Fun Stuff or Fun with Pets Collection
• Glamour Life Stuff
• Pets (disregard if you have Fun with Pets Collection)
• Happy Holiday Stuff (Disregard if you have Sims 2 Holiday Edition)
• Seasons
• Celebration Stuff (disregard if you have Double Deluxe)
• H&M Fashion Stuff (disregard if you have Best of Business Collection)
• Bon Voyage
• Teen Style Stuff (disregard if you have University Life Collection)
• FreeTime
• Kitchen & Bath Interior Design Stuff (disregard if you have Best of Business Collection)
• IKEA Home Stuff (disregard if you have University Life Collection)
• Apartment Life
• Mansion & Garden Stuff (disregard if you have Fun with Pets Collection)

Also, be sure to patch whenever you are prompted by the game to do so. You can find a link to the latest patch here: The Sims 2 (original) Patch Help