iMac says there is not enough memory to back up to passport. Sent you an email last week, but was sending to wrong address!
Also, can't find iworks disk. Will they send me a replacement copy? Do I go to apple.com for this?
Thanks!
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If your target backup disk is smaller than your source disk (hard drive) then you will eventually hit that problem. The best answer is to get a larger external drive to back up to. There are other solutions as well. I’ve dicsussed them here: Data is exceeding Time Capsule capacity | Backup, time machine | Sells Consulting

I can’t speak to what apple may do about the missing disks. You can always call applecare and plead your case. They may send out replacements. I just don’t know.