Need Help Understanding Terms

Started using Matomy Market to do CPL campaigns but I need help understanding some of the restrictive terms.

Can someone give me an idea of what the following mean:
[FONT=Arial, sans-serif]No VC traffic

[/FONT] [FONT=Arial, sans-serif]No Co Registration[/FONT]
[FONT=Arial, sans-serif]No Host& Post[/FONT]
[FONT=Arial, sans-serif]This is related to a Facebook Application where the lead is when someone installs the app.
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No VC (virtual currency) - basically don't offer any type of points or virtual currency to users for completing the campaign.

No coreg - don't place the campaign on an offer wall/path.

Host post - don't collect the information first and then send it to the advertiser all together.