This is a bit of work, your choice whether you want to put in all the effort.
You could ask Matma if he can make a version of his connection utility that doesn't talk to the WL server and only works on a local SVG file; just to spit out a list of connections which should exist. I'm unsure how Matma's tool handles territories which are only touching with a corner (the *Netherlands (Big)* map has a few of those). Also, there's a bunch of very weirdly-shaped territories (such as Den Haag) which it might not handle well. However, by and large, it should give you a nearly-accurate list of connections.
You can (ab)use the [Query game API](
http://wiki.warlight.net/index.php/Query_game_API) to get a list of actually existing connections (the map editing APIs are limited to setting connections, they can't query). Downside is it only works for finished ladder and tournament games (not simply maps; that's what you get with a *Query **game** API*), so you'll need the ID of a tournament game on this map. (Alternatively, ask Fizzer if he'd consider adding an API. Another alternative is to ask Fizzer to, just this once, dump the connection list from the database manually.)
Then, it's a matter of normalizing the format, sorting it and running a diff. That gives you a list of connections which (probably) should be added and some which Matma's tool didn't expect (careful, that will include things such as Enkhuizen <--> Lelystad!). However, with any amount of luck, both lists are very short and can simply be processed by hand, effectively making it two lists of "double check these manually".
If you think this is a good idea, but you don't have time:
- I don't mind talking to Matma, but his code is written in a language (Ruby) which I don't speak, so it'll still be a matter of whether he wants to write it. Also, I obviously don't have the SVG file which is needed as input (which is of course easy enough to fix, with your permission).
- I doubt Fizzer would want to bother writing another API (which would have very little practical use other than this special case), so that leaves us which either looking for a tournament played on (the newest version of!) this map, or asking Fizzer to dump the connections manually.
I've only played single player so far (I can't promise opponents I'll have time to finish a game), so I have no experience with tournaments. Asking Fizzer is simply writing an email, which would make a lot more sense if it was sent by the maintainer of the map.
- If you can get the raw data, I don't mind doing the processing though. There's one practical problem though: the last week of January and the first of February are called "Exam period" here, so I can almost promise you I'd miss your February deadline...