As Mark has already mentioned - with the files and DB, you should be able to recover the site
You may need an older PHP version to run it on though, as a lot has been deprecated since back then
I presume the version you were / are running is in the 0.9.x range
You can in theory update directly from 0.9.5 to 1.4.x (i've done it), it works, but you will have to update all of your plugins + snippets
A lot of the snippets etc. that were per-default in the install, are either no-longer available, not supported or are no-longer in the downloadable installer - some of the older snippets are still available to download from the
Extras GitHub
Check
this list for updating - it doesnt have the latest couple of versions, they can be downloaded directly
from Github