It's hard to give a good answer without seeing more of your code, but I think you are asking "How can I skip the first four elements of the array and process all of the rest?"

If that's the case, there are several options. Being a new programmer, you're probably already familiar with shift. You could use that to get at the img, title, date, and author fields. You could use splice to get rid of the first four elements. I like list slices, though:

for my $para ((@array[4 .. $#array])) {
    # process $para
}
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The trick there is that you're providing a list of indices of the array. Nothing terribly magical, but greatly useful.