If the page you're looking at is this one:
http://www.bluesq.com/bet?action=go_events&type_id=3912then this is actually a series of bets on which of various pairs of teams will finish higher (presumably valid until kick-off in the first games, which is why it looks like opening fixtures).
All the pairings are teams of roughly equal standing (eg the four promoted teams are all paired together), to make the bets more interesting. These aren't the opening fixtures. For one thing, there's only eleven of them. No Crawley for some reason...
Blue square have the full fixtures as:-
Oxford United v Stevenage Borough
Exeter City v Torquay United
York City v Burton Albion
Kidderminster Harriers v Rushden & Diamonds
Cambridge United v Aldershot Town
Ebbsfleet United v Halifax Town
Droylsden v Histon
Grays Athletic v Woking
Salisbury City v Farsley Celtic
Altrincham v Stafford Rangers
Forest Green Rovers v Northwich Victoria