Hi guys, ...(Dean cruises in chewing on a half finished red delicious apple, looking slightly bemused when the others stop talking and stare at him, wondering where the hell he's been for the last six months!

)
Wuddy, regrading the tile matching using PSP, well, I have never made tiles (unfortunately) (NOT!

) lol
However, I'll relate a method I use, when trying to develop a brand new skin for an already established (HiRez) AC.
The key word is 'Layers' - in PSP, have a look around for the layers palette, it will become an invaluable tool in ALL work in PSP.
"This izz yer Layer Palette" - Take care of her, She izz yer friend!!"
I WILL waste a little time explaining it all here, because the logic behind these choices is what will make the information 'stick' rather than just expecting you to follow directions. I hope that's ok?
I'll start with a HiRez AC skin method, and you'll see the connection, I'm sure.
I would gather all the seperate pcx's for any given HR AC, and open them at 100% in PSP, then I would start with the tail section (lets call it 'tailLeft')
Make it's colours 'Millions' - because this is the only way to get layers to work.
*Now, my aim is to get a 'complete AC side view, so I could paint on it all at once, that way the smudges/insig/camo whatever, will carry 'accurately' across pcx joins in game.
(note:) Knowing a pcx/tpc is 256 pixels wide, - to make a full side (tailLeft PLUS NoseLEFT, I'll be wanting a 512 wide area, ok?
Take the TailLeft pcx, and go to "CANVAS"size under 'Image' at the top.
This changes only the canvas, not the whole picture. Enter 512 pixels, or 200% in the width section. There's usually a grid with clickable boxes to tell the program which 'side' you want the additional space to appear on.
In PSP I get it wron all the time, ie. click the centre left one, and the canvas appears on the right instead, just experiment, use Ctrl-Z to revert if it goes wrong, and try again.
Sooo, we now have our TailLeft image twice as wide, with a useful space in the front, in which we can drop another image (NoseLeft)
Open the Nose pcx, and (it might get tricky) use the Lasso tool (freehand selection) and hack around the left nose section of this pcx. Double click when you reach the beginning again, and you'll get the 'marching ants'
Once done, click 'Ctrl-C' to copy to clipboard.
Go back to 'TailLeft' and here we go!! Click "CTRL-L" this will paste the left nose section onto it's own layer but fully visible within the TailLeft pcx.
NOW, By using the 4headed arrow tool, you can drag the nose section anywhere you like, as it's 'floating' on it's own layer.
Drag it to line up exactly with the tail section, and you have yourself a full side view which is 100% accurate for the game.
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Now, relating all that to Your situation:
Open the tile upon which you wish to work - I don't know the sizes of terrain tiles, so I will simply stick with 256pxl sections ok? Translate as needed.
Make the image Millions of colours (remember your colour *.pal files)
Make the "Canvas" larger 512 wide for a 2 tile match, or even 768 in BOTH directions!! That would allow you to have up to 9 tiles arrayed in 3 rows of three.
Anyway, open your 'second' tile. Select 'all' (Ctrl-A) - copy (Ctrl-C) and paste on the first image, on a new layer (Ctrl-L). position it where you want with the 4 headed arrow tool, and you should be good to go.
You will have to remember to keep the active layer as the one you are working on. Use the "Layers Palette" and click on each one as needed
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I hope you find this useful Wuddy (let alone Understandable! LOL)
Cheers
Dean