Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2008 |  | Stanley Nyazamba | MF |  | Richmond Kickers | Richmond Kickers |
| 08/2008 |  | Pat Noonan | FW |  | Aalesunds FK | Aalesunds FK |
| 05/2008 | | Steven Lenhart | FW | |||
| 05/2008 | | Cory Elenio | MF | |||
| 04/2008 |  | Emmanuel Ekpo | MF |  | Enyimba Aba | Enyimba |
| 03/2008 |  | Gino Padula | DF |  | Montpellier HSC | Montpellier |
| 01/2008 | | Kenny Schoeni | GK | |||
| 01/2008 | | Leonard Griffin | DF | |||
| 01/2008 |  | Andy Iro | DF | |||
| 01/2008 | | Ryan Miller | DF | |||
| 01/2008 | | Kevin Burns | MF | |||
| 01/2008 | | Brian Carroll | MF |  | D.C. United | DC United |
| 01/2008 | | Nicolás Hernández | FW |  | Colorado Rapids | Colorado Rapids |
| 01/2008 |  | Ricardo Pierre-Louis | FW |  | Cape Cod Crusaders | Cape Cod Crusaders |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2008 | | Ryan Miller | DF |  | Cleveland City Stars | Cleveland City |
| 01/2008 |  | Bill Gaudette | GK |  | Puerto Rico Islanders | Islanders |
| 01/2008 |  | Marcos González | DF |  | Universidad Católica | U. Católica |
| 01/2008 | | Tim Ward | DF | | Colorado Rapids | Colorado Rapids |
| 01/2008 | | Ned Grabavoy | MF |  | San Jose Earthquakes | Earthquakes |
| 01/2008 |  | Andrei Pacheco | MF |  | W Connection FC | W Connection FC |
| 01/2008 |  | Andy Herron | FW |  | Puntarenas FC | Puntarenas FC |
| 01/2008 |  | Kei Kamara | FW | | San Jose Earthquakes | Earthquakes |