Steam to regular version conversion and TCP/IP multiplayer problems on 1.66

Hi, I have just recently bought SEV on steam and I´m really starting to hate steam. First of all it downloaded and installed itself on a subdirectory of steam itself without asking where do I want to put it. I distribute my data and applications on a certain way, and this "automatic shit making" is not of my liking to say the least. Besides launching SEV without steam running doesn´t work. The more I see it it seems like steam would be some kind of malware program at least in it´s behaviour.
So the question is: is there any way to convert the steam SEV version to the regular one? If not, can I install a regular SEV version downloaded from the internet (in other words a pirate one) as a workaround? I have bought the license afterall... What would be your thougts on the subject?

In reference to my TCP/IP simultaneous game problems I wanted to ask this:
1. It doesn´t work neither alone with port forwarding and firewall rules setting, neither through hamachi. Well, it works fine till it´s time to process the first turn (to start the actual game), the program starts distributing player locations and goes back to the host screen and the game never starts.

I have read today that the workaround is not generating the map in advance and will try out it today, but I´m not certain if this will solve my problem, because this was a response for the 1.53 game version. The forum doesn´t seem to have any other usefull recomendations to make it work.