You might say, this is silly, why would I want to know the easiest thing in phpnuke. Well, you might want to know that this tutorial will save you alot of headaches later. There are a couple ways to add a block and I will explain them.

Steps :
This method of adding blocks deal with a block you either downloaded from a site or you created. This is usually a php file named something like "block-nameofblock.php" . Upload that file to your blocks/ folder. You will notice that it is not immediately added to the list of blocks. This is because you will need to add it from the "add blocks" section in your phpnuke admin panel(fig1)

Fig1.

The only fields to be used are those marked with a red check.

Filename: Select your new block from this list.
Position: Choose where you want the block to be shown, right, left, center.
Activate? Decide if you want the block to be active.
Expiration: Choose the number in days for the block to expire [ This feature is only present in newer versions of nuke ].
After Expiration: Decide what happens after block expire if the above is set. [ This feature is only present in newer versions of nuke ].
Refresh Time: This as it says is only for headlines so in most cases you won't use it.
Who can View This? Select who can view your new block.
Visible to Subscribers? If you use the subscription feature in nuke then select whether they should see the block.

Click Create Block.

You have now successfully added your block. Now the next step is to place the block exactly where you want it on your page.

Step2:

You will now see your block in the list of all the active and non-active blocks. (fig2)

Fig2.

You can use the arrows to move the block up or down. You can also edit, delete, deactivate and show the block if its on the right side.

That's it! Check back soon for tutorials on the other ways to add blocks.