Young trades haven't had enough time to mature, so there's still plenty of time for them to sell. That's why they aren't "Unsolds".

The "6.00" link seems to have sold a few. However, your "6.33" link has quicksold one, and thus counters it.

Your first "7.00" link is the search link. You can't use that.

http://www.tf2outpost.com/trade/27134688 --- Young (Wait for it to at least get 1 Day Old)

http://www.tf2outpost.com/trade/27112121 --- Unbumped for 3 Days (If it sells without a bump, then it's a "quicksell" and means that 7 is too low)

http://www.tf2outpost.com/trade/27124798 --- Unbumped, lost in Sweetstakes.

http://www.tf2outpost.com/trade/27135923 --- Young (Wait for it to become a day old. If it sells before then, then it's a quicksell, and 7.33 is too low)

http://www.tf2outpost.com/trade/27110442 --- Unbumped for 3 Days (Sold without a bump, thus it's a quicksell, and 7.33 is too low)

http://www.tf2outpost.com/trade/27131716 --- Young

http://www.tf2outpost.com/trade/27134832 --- Young

8 Ref Unsolds

Your first 3 are Young and unusable until they become 1 Day old.

1 Day isn't really "Unsold" as it still has plenty of time to sell.