Good choice of card, I have one too.
MT with a Nexus or a motor is useless, the author won't support the hardware OSD and the Diseqc motor positioner is a joke, I used it for a few weeks until my motor arrived and gave up after trying to get support for itwhen mine wouldn't work properly from the official MT website (Which tries to install a trojan)
Go to
www.progdvb.com and get that instead - it's far better with signal and will add weak transponders that MT won't, it's free and the authors website won't install trojans on your machine.
You should be able to use most of the plugins from MT as they're both based around DVBCore.
For my SG2100 I use Diseqc12 which is here:
http://parabolfr.free.fr/Diseqc12.zip
And the .ini file with NA sats is:
Diseqc12
Autodrive=NO
1 13.0 E HotBird 1,2,3,4,6
2 19.2 E Astra 1B,1C,1E,1F,1G,1H,2C
3 16.0 E Eutelsat W2
4 10.0 E Eutelsat W1
5 7.0 E Eutelsat W3
6 5.0 E Sirius 2,3
7 3.0 E Telecom 2A incl.
8 1.0 W Intelsat 707
9 5.0 W Atlantic Bird 3
10 8.0 W Telecom 2D
11 18.0 W Intelsat 901
12 21.5 W NSS 7
13 27.5 W Intelsat 605
14 30.0 W Hispasat 1A,1B,1C,1D
15 37.5 W Telstar 11
16 23.0 E
17 26.0 E Arabsat 2A,3A
18 28.2 E Astra 2A,2B,2D
19 28.5 E Eurobird 1
20 30.5 E Arabsat 2B
21 31.3 E Turksat 1B
22 42.0 E Turksat 1C
23 34.5 E
24 45.0 W Panamsat 1R
25 4.0 W Amos 1
26 0.8 W Thor 2,3
27 7.0 W Nilesat 101,102
28 12.5 W Atlantic Bird 1
29 43.0 W Panamsat 6,6B,3R
30 53.0 W Intelsat 706
31 58.0 W Panamsat 9
32 61.5 W Echostar 3
33 72.0 W AMC 6
34 74.0 W SBS 6
35 79.0 W AMC 5
36 82.0 W Nimiq 2
37 84.0 W Brasilsat B3
38 85.0 W AMC 9
39 87.0 W AMC 3
40 0.0 W Reference Position
41 90.9 W Nimiq 1
42 91.0 W Galaxy 11
43 93.0 W Telstar 6
44 95.0 W Galaxy 3C
45 97.0 W Telstar 5
46 99.0 W Galaxy 4R
47 101.0 W AMC 4
48 103.0 W AMC 1
49 105.0 W AMC 2
50 107.0 W Anik F1
51 110.0 W Echostar 6,8
52 111.1 W Anik E2R
53 113.0 W Solidaridad 2
54 116.8 W SatMex 5
55 118.7 W Anik E2
56 119.0 W Echostar 7
57 121.0 W Echostar9/Telstar 13
58 123.0 W Galaxy 10R
I can't receive Anything past Galaxy10R and Galaxy4R (Trees) and I've taken out 110,119 and 121 on mine so if you want to replace/delete any of the entries it should still work.
One thing I noticed on my setup, whether it's my cable length or something else, is that if I have a very strong signal say from 110/119/121 my motor doesn't respond and I usually have to give it a few clicks of the "Drive" button in software to kick it in which sometimes corrupts the internal memory of the SG2100 and resets it to default and wiping out all my presets.
I'm using the old DirecTV cable that was at our place when we moved in so that may have something to do with it.
You'll need to either edit the transponder ini files in the transponders directory of ProgDVB or download updated files from:
http://joshyfun.peque.org/transponders/index.html
Let me know if you need anything else, I have a preconfigured ProgDVB setup with a Ku LNB with an LO of 10750 and a few sats with channels if you need it.