Its now 6weeks since I have dvt. At first the pain was unforgiving, but I'm back at work, question how long will it take me to walk with out a limp?

Leg pain. The pain that comes after a DVT is typically post phlebitis syndrome. You will benefit from compression therapy and then compression stockings. See a specialist that has a special interest in venous insufficiency.
Depends on clot. As the thrombus recanalizes your swelling and discomfort should diminish. This occurs usually over the first several months. Use of compression stockings may help. Residual thrombus may be present for years.