deniseantonia - Sims Life Stories has a bit of this and a bit of that from The Sims 2, University, and Nightlife; not everything, but like a "greatest hits".
If you have The Sims 2 Holiday version or The Sims 2 with any of the holiday fin packs installed, you can
copy the
H05.bundle.package and
H06.bundle.package from:
C:\Program Files\EA GAMES\The Sims 2\TSData\Res\Catalog\BinsTo:
C:\Program Files\Electronic Arts\The Sims Life Stories\TSData\Res\Catalog\Binsand add the Holiday Fun Stuff to SLS.
other things work when placed in:
My Documents\Electronic Arts\The Sims™ Life Stories\DownloadsWhen downloading furnishings, make sure they are base game compatible, this will give you the highest chance of SLS-compatibility; it isn't a garuntee of it working, but it gives you the best chance of it working.
InSIMenator works just fine; but if you like
Merola64's Multi-purpose Painting, you will need the file I have attached below for it to work since the 3-tile "Rolling Hills" painting is missing from SLS.
Extract the file form the RAR and place it in either the SLS downloads folder, or:
C:\Program Files\Electronic Arts\The Sims Life Stories\TSData\Res\Catalog\Bins