Expanded map while running this tool:

http://www.minecraftforum.net/topic/629884-a-tool-for-merging-171819-maps/page__st__20__p__9296519#entry9296519

Its an awesome tool if you hate Derp cliff artifacts due to map generation engine updates.

Video of what you should expect:

http://www.youtube.com/watch?v=75INfrsz7Es

Expanded the map and started construction of new railway line.
Inner Mountain Cave station by headquarters also further improved.

Added signs in and around my headquarters to make getting around easier.
It should lessen the chances of losing yourself in the cave systems
interconnecting my headquarters. Also explored to fill in gaps on the map.

Finally updated the majority of my track system to the powered
track instead of the ole booster system.

Apologies Drox, and anyone else whom may have been troubled by the
state of the save. I had not been able to update the save due to R.L.
But no worries now, I have updated the save to 1.7_3 and also managed
to get rid of some stray items from some now defunct mods. (Thanks to
the MCEdit team!) No aimless roaming now either; I have saved in one of
my structures, so exploring should be more exciting now.

just for the record, next time you upload ure map. Don't save ureself in the middle of nowhere so that the player has to wander around aimlessly.