Pretty easy. As stated above, you can use EmelFM2 and become root. If you're used to the command-line, you can become root, "cd /" to the root directory and "mv" the file you need to the folder of choice.

If you're not very familiar with the command-line, use EmelFM2 as root from the command-line.

You'll have copy/paste/editing permissions then for anything you need to do.

if you want something else that's not so "flashy" as EmelFM2, use GPE-File Manager. Only problem with that is you can't see hidden ".folder" directories.

Jesse~