lenses for fujifilm s5600

[mark-gts]

i just bought a fujifilm s5600 but one of my mates said not to put lenses on top of lense what would people say to this :?

http://cgi.ebay.co.uk/0-45X-Ultra-Wi...QQcmdZViewItem
http://cgi.ebay.co.uk/0-5X-Wide-Angl...QQcmdZViewItem
http://cgi.ebay.co.uk/2X-Tele-Photo-...ayphotohosting

i was reccomended these by a friend of mines a dunno if these will be any good for my camera or not

any info on this would be highly appreciated