Smith Micro (S/M) doesn't provide free downloads of anything not offered free.  If it is a paid item, did you pay the Smith Micro the fee for keeping your paid content available? After a hard drive failure I had better results contacting vendors, telling them what happened and relying on their good will.  Most believed me and gave me fresh download links. Some did not.  I respond to this by only buying Poser products from the big three.  If I have to make a purchase from S/M, I back it up.  Twice.

Jim, you must have downloaded the content at one time.  Did you delete it or is it stored away on an old hard drive?