The Photo studio is grayed out and no accessible and looking for a solution.
Tried to follow all said in instructions given in Photo Studio tutorial; by Deedee.
If photo studio is grayed out on your menu you'll need to make sure you've got (CEP) that I have to current Bonvoyage. Configure your paths for the game;
This is how they are:

System Folders

1. Original game
1: original……C:\program files (86)\EA GAMES\The Sims2
Savedgame…….. C:\users\joe\Documents\EAGames\The Sims2

2 Expansions Packs

1:University….... C:\program files (86)\EA GAMES\The Sims 2 University\
2: Nightlife………. C:\program files (86)\EA GAMES\The Sims 2 Nightlife\
3: Business……….C:\program files (86)\EA GAMES\The Sims 2 Business\
4: Pets……………..C:\program files (86)\EA GAMES\The Sims 2 Pets\
5: Seasons……….C:\program files (86)\EA GAMES\The Sims 2 Seasons\
6: Bon Voyage.. C:\program files (86)\EA GAMES\The Sims 2 Bon Voyage\

Mini Expansion Packs

1: Family fun Stuff….. C:\Program Files (x86)\EA GAMES\The Sims 2 Family Fun Stuff\
2: Glamour Stuff ……. C:\Program Files (x86)\EA GAMES\The Sims 2 Glamour Life Stuff\
3: Celebration Stuff… C:\Program Files (x86)\EA GAMES\The Sims 2 Celebration! Stuff\
4: H&M Fashion Stuff….
5: Teen Style Stuff…….

Sims Stories

1: Life stories
2 Pet stories

Celebration! Stuff

Nvidia DDS Tool folder [C:\Program Files (x86)\NVIDIA Corporation\DDS Utilities] [Browse]

Any help will be greatfull recieved. regards Joseph

Download the CEP. It helped fix that problem I had myself just awhile ago.

I'm sure that will fix your problem.