Information on casualty figures for Afghanistan can be found on the relevant section of the MOD website, which is updated twice per month at:
Between 1 June 2006 and 15 September 2007, field hospitals in Afghanistan recorded 842 admissions for UK military and civilian personnel. Of these, 249 were categorised as wounded in action, with the other 593 admitted for disease or non-battle injuries.
Over the same period, 33 personnel were recorded as very seriously injured or wounded and 36 as seriously injured or wounded.
No UK infantry units are equipped with the Blue Force tracker system, which is a US system. All formed company-level UK infantry units in Afghanistan are equipped with Bowman, which provides a blue force tracking capability. Other systems are also available to UK forces in Afghanistan. I am withholding details of the distribution of free standing blue force tracking systems as their release would prejudice the safety or security of our armed forces.