I do hate it when creators don't get the package files and give them proper filenames that you can recognise immediately as belonging together! Saves all that messing about with the installer as well! I mean, how long does it take someone who's made something to install it to an empty downloads folder, and replace that ridiculous string of letters with a name, then do the same for the mesh, and upload those packages in a zip! And chuck the darn sims2pack where it belongs - in the recycle bin!
Amen.