You can get new ground textures just by searching freeware sites on the internet, there's some great one's out there, or you can make your own in Photoshop, or programs like that.
Exporting and importing into FPSC for ground segments, you can use the Segment Creator on the FPS Creator Website, on the following page,
http://www.fpscreator.com/downloads.html and download the segment creator from there.
A skybox pack is, basically, a pack of textures to use for your sky! You can make your sky look different, eg, have a night sky, have a sky that's got the setting sun, that has a city on the horizon.
To use skyboxes, extraxt the pack to your skybank directory in FPSC, normally C:\Program Files\The Game Creators\Fps Creator\Files\Skybank
Hope all that helps!
Need web design help with PHP or XHTML? E-mail me!
http://veron.sitesled.com Visit Veron! Free games, programs and applications! Made in DBPRO, FPSC, and C++!