What image are you using on your Gigablue and on your Duo?
From the steps you have listed above, you have not added/applied a boquet to your duo2 channels.
You can copy the one from your gigablue to your duo /etc/enigma2/
Or you can use one of the plugins, or whichever option you are using on your gigablue
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Just in case here is a step by step guide
1. Check tuner configuration
2. do full automatic scan, can you see the channel names as you scan through the satellites transponders?
3. Once fully scanned do a restart/gui restart.
4. Apply bouquet using whichever method you require restart/gui restart. At this point your channels should be organised without any epg data.
5. As a final check, id delete any epg download you have and start afresh.
6. if you still get not EPG check the version of CrossEPG, I seem to recall (I Could be totally wrong) on vix with a duo clone some time ago I had to use an earlier version, both of which can be found on or
addon pannel.
Let us know how you get on, good luck.