I have gotten a new PC and loaded ss on it, but now I need to be able to download my website back into ss to edit and repulish changes......
How can I do this? I can't find and import export feature!

A new computer -- lucky you

You'll need to copy your .ims project files to the new computer; also any source files like images.

More about this in What files do I need to make a backup?.

what if my old machine died and I don't have any of the files left is there any other way to recover my website data

Oh, maybe not so lucky

If you don't have backups, your only hope is the .ims project file that is auto-backed up to your site. To recover it, see the OddsnEnds tutorial "Download your backup project", under Help > Tutorials.

If you can get that, you are well on the way. For images, you can download those from your site. One easy way: open a page, then use Save as "Webpage Complete" and pick the images out of the resulting folder on your computer.

Thank you I'll give that a try