Can I replay the original campaign using ToE?

[Wheeler Dealer]

Can I replay the original campaign with ToE upgrades? The extra spells and extra creature upgrade choices?

I've seen posts that make me think this is possible.

I even googled a link that was supposed to have the necessary stuff (http://www.heroes-fr.com/en/original_campaigns.php) but it doesn't work anymore.

Can I just move the map files so that they will be linked into a campaign?

Thanks