First, update the old version electrum to check if it's really funded or check the addresses' balance from any blockexplorer.
Do Abdussamad's suggestion to update your Electrum.
Yes, I know about "right-click" but this version don't show addresses without sync.
Ok, I will update my version. (I don't make it because affraid lose my btc)
Addresses are hidden by default, hit alt+A (or ctrl+A - can't remember which it is) and the addresses tab will appear.
it "was" Ctrl+A, they removed the keyboard shortcut for some reason (maybe because it was weird! Ctrl+A is select all...) so it no longer works that way. you have to choose which tab to show/hide from the View option from the toolbar menu on top.