Well I'm not sure if this is the right area to be posting this. Neways I noticed for quite some time that the cheats for Pokemon White and all subsequent White versions including the hacks gave me a problem when I chose a particular cheat (Pokemon marking codes - Have Pokerus all the way to Maximise PP Up's) it works fine for Black but hangs in white so I checked some other cheats and realized that if I edit a 2 numbers in the first line of every code mentioned in the bracket it stops hanging after the edit. Here's the codes provided in the CMP cheats database which hangs :

Have Pokerus - 020195D0 FC24F7E8 - if the value underlined is changed to 16 it no longer hangs so the edit one looks like this

Have Pokerus - 020195D0 FC16F7E8

So here are the codes under Pokemon marking codes that needs the value edit(which I've already done) :

The others Max happiness is not something I use so i don't know if it needs editing also the last 2 codes -
Mark a Pokemon to give it your player's OT and OT gender & Mark a Pokemon to give it your player's ID and sID already have their value at 16 so this is where I noticed. Hope it can be edited and incorporated in the upcoming releases.
I don't know if this will apply to Pokemon White 2 though