OK so I realised after lots of experimenting that Store doesn't work with Sourcemod 1.6.3, so I used 1.6.4 and there is progress it appears. My only issue now is I buy things, it takes the credits but in inventory it doesn't show up.
SQL Error on GiveItem: Unknown column 'aquire_method' in 'field list'
2014-12-31 18
2:13 [store/store-backend.smx] ERROR | SQL Error on GiveItem: Unknown column 'aquire_method' in 'field list'
2014-12-31 18
2:29 [store/store-backend.smx] ERROR | SQL Error on GiveItem: Unknown column 'aquire_method' in 'field list'
2014-12-31 18:42:56 [store/store-backend.smx] ERROR | SQL Error on GiveItem: Unknown column 'aquire_method' in 'field list'