It dosen't appears on the map because if you have vista or 7, it may denie the replacement of the files even if it said that it replaced the files. So, if your game is installed on "program files", than move the game into "Documents" than replace the files again to fix this problem!
you don't understand! we don't have the same version of the game! that is why your mods dosen't work for me. :/more people has the same version as me and less people has the same version as you! that is why your "coral reef island" is voted 2 stars only because there is more people that has the same version of the game as me! and my Moana island resort has the good version for those people who has the same version as me, that is why it has a good vote! well i think that "nothingspecial" has the same version as you. so, your comment saying "i believed your mod will broke the whole gta in the world" is BULLSH*T!
no, the gta.dat only tells the game which files it has to load like Law2! there is no such thing as adding the gta.dat in the mod! it is not going to change any thing! if there is a new file called like "exemple.IPL" or "exemple.IDE" installed in "MAPS" than you will need a new, MODIFIED gta.dat! and my mod file is allready Law2.IDE and Law2.IPL so, i don't need a new gta.dat and allso, i tested, i reinstalled my gta sa and puted the mod without changing the gta.dat and it works perfectly!