function to get the total weight?

[DrByte]

That is the correct function; however, it cannot be run when in admin mode.

So, that means that you're either running it in the wrong spot of the module, or you need to tell that line of code not to run when in admin mode by wrapping an "if" statement around it with this condition: (IS_ADMIN_FLAG === false)
Yes, that IS three equal signs.

You're most likely asking for weight in the wrong place. What exactly are you trying to do?

[bangsters]

ahh so that's what it is :)

thanks for that info :) I was trying to limit flat rate to show up only on a certain range of weight total....so I placed it in flat.php in my modules -> shipping area... but everytime i try to go to my admin section -> modules -> shipping, the shipping don't load up....

thanks!