You probably posted in the ROM Hacking Section, where posts have to be approved by a Moderator before they appear in the lists of posts, explaining why your posts "disappeared."
As far as I know, no. But I do know that people (such as a friend of mine) have been able to hack and exploit a DS Emulator called No$GBA (I'm sure you've heard of it) so that the starting screen is the same as that of a normal DS. Using the right .bios files and .sav files and using the proper methods of extracting them into certain folders, I think you will be able to battle online as well.
But if you just want to battle online with other trainers with the same game mechanics as you have, you might want to try Pokemon Online, a program which allows you to pick your Pokemon, its stats, its attacks, and then use them to battle against trainers. It's not an emulator, though. It's a program. You can download the program
here.