error when importing an external jar

Hi,

i have some trouble in importing third party jars.
i was trying to add the path of the jar in the max.hava.config.txt

max.dynamic.jar.dir /Users/xxx/Applications/weka-3-6-2

but i still get this error:

/Applications/Max5/Cycling '74/java/classes/Init.java[ 2 ] package weka.associations does not exist
import weka.*;
^
1 error
[ Jun 24, 2010 4:56:58 AM ]
compilation of /Applications/Max5/Cycling '74/java/classes/Init.java failed.

I just cannot figure out what i am doing wrong ... maybe someone can help,
thanks