Right, I'm going to take these one at a time.
Firstly, I don't do ProgDVB, so can't help you there. Principals from MT will transfer pretty well.
I should also say that I don't have V1.8 of the plugin, I have V1.7 so take that into account.
Next, the range of satellites listed (the east and west limits) will do just that. They will limit (in the software) how far you can drive the motor. What you set them to will depend on how far your dish can rotate left and right before it hits something. Be careful. There are also hardware limits inside the motor that you can set if you want, which will physically limit the dish. I haven't bothered on my SG2100.
As an aside on DiSEqC, you should read my notes in the dish setup section. It will give you a clue how it works, and what the different options do.
OK, next, I have my longitude set to 358.2, not -1.8.
Don't know how V1.8 of the plugin works, but you might want to think about that.
There is an import utility in MT V2.76, but I don't like it. Don't forget that this software is pretty old now, and many of the transponders in the lists are out of date and/or missing.
I don't really have time to figure out a quick way for you to fix this, but a good exercise would be for you to pick a good sat (like Hotbird) and punch in all the transponders for Hotbird from
www.lyngsat.com. You can actually import from the satellites folders that came with the plugins, or satcoDX files I think, but be careful.
Once you've done that, point it at Hotbird until you have a picture on a known transponder (manually by driving east/west) and then hit the max signal button. Once it is optimally on the sat, do a full transponder scan by selecting all the transponders, and hitting scan. It will take 5 mins or more, and you will have about 1600 channels depending on your dish and location.
MT is a bit flakey, like all this software. When it goes over (and it DOES go over ocaisionally) in can corrupt any open file it has. This can include the channel list database, and the EPG database. It won't move the dish around. That will still be where you left it.
Because you are using GOTO x commands, it will tell the dish where to go. It doesn't say 'go 10 deg w from where you are'. It just says go 10 deg w, so you can always get back to where you were. Don't worry about that. If you say goto 1W, it will be back where the installer put it.
As soon as you have a half working system, BACK IT UP. Then, when it crashes, you can restore it. Back up the entire MyTheatre folder in Program Files. Back it up with a different name every time you do a big update, like a sat scan, or work on the channel lists or transponder lists. Back it up every week anyway. Get smart. Save pain.
There is a sat table IN the motor. The manual will tell you which number relates to which physical sat. You can overwrite them, so be careful. You can also reset them to facotory defaults, so don't be THAT careful!!!
Try and get MT working like you had it. If you can't, it's corrupt something and you'll have to re-install over the top. Delete the channel and EPG files first.
Sort that lot out, then we'll do a bit more.
STICK