[David Bhulapatna]

I alway use After Effects and get good results.
Open a Composition in Pal
First you need to resize (depends on the Signal, but most often is 125%)the movie.
Right Click on the Movie in the Project Window.
Interpret Footage/Main/Fields and Pulldown/ –> set to Lower Field First.
Turn on the switches for “Frame Blending”. This will do an interpolation due to the different Framerate.
Best Quality is also recommended.

Because of the Interpolation and he best quality setting, the result is a little blury. As I do Conversions on Videogame-footage (yeah Fullscreen Antialiasing) I never sharpen the Footage afterwards, but maybe this will help.

Sometimes I get footage with reversed Fields – You can control that, if you switch the Composition to 50 Frames/s and step the Movie forward by frame. If the motion you see is stuttering Back and forward, this is the wrong Field Order. If the movement you see is in one direction – erverything is ok.(e.g. a moving car, arm or something moving in the footage)

hope this helps

David