If your using PS2, and have made the club's emblem via EDIT MODE, Simply start a new master league, choose Create Own Team ( Or something along those lines ), Edit the kits and then choose the club emblem. That way you can install the team into how you want it, although you will get the master league default players unless you edit the squad before hand.
To get the Blackpool players into your squad, the best option is to create each player in the edit player section of the EDIT MODE.
Use one of the Other squads (Team A, Team B Etc...) to edit the players then simply add them players into your starting ML Squad...
Hope it makes sense