I am part of the flagbrew team, and just thought I'd clear some stuff up and why this person created this thread..
1. We never said anything about ntr plugins not working for 1.2, OP has an O3ds and was planning on trying to use a plugin that hadn't been updated for 1.2 so that's where his whole idea of no plugins working thing came from.
2. We never said anything about it being better to use the cheat database from sharkive at all.
3. We did tell him that there was 1.2 codes for US several times over but he kept insisting that the codes didn't work because he didn't understand how to really look at the cheat names and see that he kept trying to activate codes that where made for older versions, since we currently still hold onto codes for older versions of games as well. (which is where the whole thing of him thinking that none of the codes worked for 1.2 for US).
4. and again another thing he is mistaken on is the whole "codes won't be updated for a while" thing, I am the person who maintains the whole database side of things for sharkive, and well there are two things to this, one is that we literally have no one in the team who actually makes codes, every code we get into the database is either through my own findings of the code from various sources or someone ends up making a Pull request to bring said cheats in the database. Two I myself have been unable to really do much due to the fact that my computer broke several months back and I haven't been able to get a new one yet and old one is in the repair shop so updates to the database from my side of things have been kinda dry, but I still accept PR's 99% as soon as they come in. so the whole "codes won't be updated for a while" thing is a complete lie, it just depends on if someone is willing to come around and actually make more gateshark codes for version 1.2 of US.
anyways as a closing note on this, in the end I did end up helping him set up Nanquitas's luma plug-in loader, along with setting up AnalogMans USUM plug-in, so he at least is now set on having codes for 1.2 for US, until someone comes along and adds more codes to US for 1.2 and possibly adds more for UM as well (even though there are a lot more 1.2 codes for UM already in the database compared to US)