Homorphus charm & Lupin

[Brenda]

No: HPFGUIDX 113069

Hope this han't been discussed before, but I did not see any 
reference to it in the archives.

In COS Lockhart discusses his various achievements with his students 
including performing the Homorphus charm on the Wagga Wagga Werewolf 
which changes the WW back into a man thereby delivering the village 
from the monthly terror of Werewolf attacks.

In POA Lupin tells the trio about his becoming a werewolf, and that 
in those days there was no cure and that Wolfsbane potion is a 
recent discovery which allows him to become a harmless wolf.

While we know Lockhart was not the wizard to perform the Homorphus 
charm, there had to be fact to the possibility of it being done or 
he would not be famous for having done it. So why is Lupin so 
resigned to his fate and not wandering the world searching for 
someone who can perform this charm? Why hasn't Sirius or Dumbledore 
helped their friend more.

I'm sure the reason must be that the storyline requires Lupin to be 
a werewolf for some upcoming event or possibly his own demise. 
Anyone have any thoughts on this?