Hello David and welcome to the forum.
As far as I can remember, you cannot use third party plugins with Pro Tools First, unless they are purchased via the Avid Marketplace. This is one of the limitations of Pro Tools First I'm afraid.
You don't say which OS you are using but if you have a Mac then you'll find that you can use (and record with) AmpliTube in Garageband.
Other than that, you could try out Reaper by Cockos, which has a fully-functional 60-day trial licence after which, if you like the DAW, you can purchase a full licence for a very reasonable cost. Reaper is available for both Windows and macOS.
David love wrote: The amplitube max shows amplitube 4 loaded, I assume its the same program. It works great!
Yes, AmpliTube 4 is the main app and the MAX part is the level of package that you have bought and therefore the amount of pieces of gear available to use.
Hope that is of some help to you.