I found if you copy and paste the link below into your browser, it will auto download. This is the caw 1.69 version.
FYI - you cannot use EIG with this version unless you take out your mods folder, if you have one, as well as your dccache folder (store content & cc downloaded via the launcher). At least that is how I am able to use EIG with this version. Also some worlds will not export if you have a lot of lots/worlds in your game launcher. (Remember to place those folders somewhere safe, that you can remember, so you can put them back in your game once finished building your world. Do not delete those folders.) This version just can't handle too much store or custom content.
The other thing that can be done is to just place empty lots in your world then build them once you export your world into your game.
http://lvlt.thesims3.com//content/global/downloads/caw/ts3caw.exe
