Installing the MOD

Will this do any damage to my database? Will this ruin my style? If no to those, how do I install it, I'm very confused. Thanks if you help! I currently am on snow leapord, using 000webhost. I have a forum which apparently I can't post. But, thanks, nevertheless.

Its will make no changes to your datebase.
It will only work on a 3.0.9 version of phpbb.
Its a premod which means that you need to overwrite all existing files. And it will not work on other styles than the one included.

Its will make no changes to your datebase.
It will only work on a 3.0.9 version of phpbb.
Its a premod which means that you need to overwrite all existing files. And it will not work on other styles than the one included.

So, I literally have to delete all my files... But the database will stay the same? Also, would smilies/bbcodes, etc. stay the same?

Oh, and if I want to keep my style can I download the individual MODs, or do those not work either?

Smilies and bbcodes are in the database.
No, not delete but overwrite.

Some of the mods included is not avaialble for download, so the answer will be no.