I can help,
Go to project settings and select the frame rate as 25 fps. Then change the frame rate also at the video options tab. now when you import (from file menu) and then drag it to the time line, it will automatically convert any movie to 25 fps. The go to file and then export to save your work to an avi.
To save to an mpg you have to download ezcleaner 5 codec for premier 6.0 .
any ways dvtools is a good utility too.
both the softwares are good, So pick one.