ActionScript 3.0 :: Insert Movieclip Into Specific Frame For Pause Menu?

So i am working on a pause menu for my game. I have an inventory box that has slots for weapons, powerups, and other items. I wanted different boxes that are specific to each type of pick-up (weapons, powerups, other). So I drew a box with 3 frames, it is set up similar to tabs in a web browser; click on weapons tab and you see your weapons in your inventory, click on powerups tab and you see the powerups etc...

In each frame I gave the inventory slots different instance names, i.e. in weapons; weaponSlot1, weaponSlot2, and in powerups; powerupSlot1, powerupSlot2.

When the player bumps into an item, i use gotoAndStop('frame number') so that each item is added to the proper inventory slot. the only problem is that if i bump into a key then pause the game, the key is there (under 'Other' tab), but if i click the 'weapon' tab and then go back to 'other', the key is no longer there.

This makes sense because when you click on each tab, i use gotoAndStop('frame number'), and in each frame the inventory slots are blank, so im stumped on how to keep each item in the proper slots?

I am going to i upload all my files in a zip, the main file that you will want to look at is the PauseMenu.as file

Also you will notice 3 public functions called 'checkWeaponSlots', 'checkPowerupSlots', and 'checkOtherSlots'. These are called in my main file, when the player bumps into an item, these functions are called to check which slots are empty.