It's understandable that you are getting nervous and somewhat impatient if you're trying hard to process a lot of information on unknown territory and you don't succeed. Yet...
But don't take big steps.
With some guidance you will get there and it will start to make sense to you.
You will be given help.
Please be advised that there are three 'meta' files.
- meta.txt and/or Updated_meta.txt which is used by fastactivate and which you can (or have to) copy into your map folder.
- Europe-xxx.meta; this file is part of the map download and is in the map folder
- Europe_xxx.meta.dct <-- If you have this your map should be patched (if meta code is correct)