My ecg was abnormal with a 'probable anterospetal infract age indeterm' - q >30ms, tneg, v1-v3. does this mean i had a heart attack?

Not necessarily : Unfortunately, a lot of what an ECG machine reads is inaccurate; it also is true that a lot of ECG changes are non-specific, so your changes may or may not mean you'd had a heart attack in the past. Perhaps a good way to tell the difference would be to have an echocardiogram.

Possible: Were there chest pain or other symptoms? Lab test? Ekgs can be helpful and confirm known clinical situations. Q waves are abnormal poor qrs progression is abnormal. Best to compare with any older ekgs fr best answer.

Very little : Unfortunately, the conventional ECG is older technology, invented more than 100 years ago. It is only accurate for rhythm disturbances and does not detect lack of blood supply to the heart at all! a new and much better technology based a systems engineering has emerged! it is called multifunction cardiogram! http://en.M.Wikipedia.Org/wiki/multifunction_cardiogram.