ACAD 14 will work just fine. Do you draw to scale in Acad? Do you understand how to check your dimensions in ACAD. If you do, then Lazycam will convert your drawings to G-Caode in exactly in the same scale (i.e. 1" = 1") In addition, you call also use a G51 command in your G-Code to Scale the AXIS command by whatever scale factor you wish for example G51 X.5 Y.5 would reduce all X & Y commands by 50%.
Good Luck,
Sid