It was a fresh download, I had just purchased the Humble Bundle. I was on Linux, but switched over to a Windows machine and there it unzipped normally. Strange, usually it's the other way around for me. Issue is resolved now. :D

Fixed some minor mistakes and spelling errors.

No problem, glad to help out a fellow mapper.

I'd recommend watching tutorials on youtube, that's how I started. Aside from Profantasy's official channel I found Joe Sweeney's channel very helpful. There're a few other channels too.

Make sure the text layer is unfrozen/unlocked and click the 'Numeric Edit' button on the left tool panel. The mouse cursor should have a small box next to it, then click on the text you want to edit. This should open the 'Edit Text' window. In the 'Properties' settings you can change the font, size, and alignment.

If you want to change the text color you need the 'Edit Properties' button right above the 'Numeric Edit' button.

I put text on a separate layer, either on the 'GAME MASTER ONLY' or 'TEXT' layer. Similar to sheets, click the 'layer' button on the top bar. This opens the list with layers, the first box is to select the current active layer, the second to hide/show the layer, and the third box is to freeze the layer.

I put all secret doors and traps on the 'SECRET' layer so you have to hide that one as well for player maps.

:)