Some Links that you may find helpfull:
DSA: www.dsa.gov.uk
Test Centers
South Yardley http://www.dsa.gov.uk/DTCInfo.asp?id=2050&Cat=38&ShowRoute=0
Shirley http://www.dsa.gov.uk/DTCInfo.asp?id=2053&Cat=38&ShowRoute=0
Garretts Green http://www.dsa.gov.uk/DTCInfo.asp?id=14913&Cat=38&ShowRoute=0