Hi Juv,
Yes, it's pretty normal that the test centres offer an English Test of 4 elements (Speaking, Listening, Reading &Writing)
You'll normally be required to take all 4 elements of the test, however the UKBA requirement is for a passing grade in Listening and Speaking only. Means if you don't make a pass level for Reading and/or writing you'll still be good for the Visa Application.
Hope that will clarify![]()