Cyril,
"Did you use a full orchestra with all articulation loaded !"
Actually, yes, every SLE customer can verify this. The Demo scores included with NOTION SLE feature two Full Orchestra scores with VE PRO, with all articulations loaded (those demos are not present in NOTION3 Demo). Additionally, you can go here:
http://www.notionmusic.com/support/tutorials.html and watch the following tutorials:
1. VSL Custom Presets
2. Score Templates pt1. and pt.2
They show you using VE PRO in SLE in detail and it is widely available for anyone to see.
And here: http://www.notionmusic.com/products/notion_sle.html (click Videos) you can watch the demos perfromed. Yes, those were perfromed with VE Pro!
Your demo piece is most likely a MIDI file correct? Then, as I explained before, you will be able to import it in NOTION SLE, assign the different parts to channels in a VE PRO configuration but unless you articulate your score with slurs, staccatos, accents, performing instructions, you won't hear articualtion changes, because the resulting score wouldn't have any (MIDI files do not have score marks).
I understand that it is frustrating for you that you could not achieve what you wanted to see in the demo period time. Send me your demo piece and I will see if I can arrange to have it prepared in SLE format specifically for you.
Please keep the harsh tone and accusations down, though. I have personally sent you instructions numerous times on how to do this, some of which are on this very forum. I am willing to help you further and show you that what you are asking for is indeed achievable in SLE, so I recommend you further contact me by e-mail.
Thanks!
Lubo Astinov
NOTION Music