This is like all the other transfer deals, no one confirms or deny's. Remember Durante...right up til the end he was none commital and then once their obligations to their previous club are forfilled they come over.
We know the Phoenix want Porter, from the Hartepool fans website we know they are resigned to losing him. Everything points to a transfer. THe Phoenix are just respecting Porters obvious request to keep it quiet until the end of the UK season. Any player knows that to tell your club you are off will mean you pretty much spend the rest of the season warming the bench.
I guess the only spanner in the works would be a late counter offer from Hartepool but that seems unlikely from reading the fans website.
Anyway if Porter was not coming, the Phoenix would be making more noise about signing another striker. There is no way they would go into next season with the current strike force.