Peeps Help!!!!!!!!!!!

I have been in my current house about 2 years and many problems have cropped
up in that time, mostly from the previous occupant - a bodger!

Whilst speaking to the neighbour I was horrified when I found out that he
did the loft conversion? (well more like a daylight storage place) by
himself!!!!!

I know nothing about roofs, however my house is a 1940's 3 bed semi, with a
hip style roof. I've had a look myself and compared it to my brothers house
down the road. The brace has been removed and T'd off with a lump of wood
which is secured to floor joist and roof joist. At roughtly head height a
similar sized lump of wood has been secured to the other side. On the side
where part of the brace is still intact there is still a length of wood
supporting part of the "massivly thick ring of wood" which goes round the
loft to the floor.

If I stripped the loft and took some pictures would someone here? or my
council office be able to tell me if its done right?

Does somebody have any plans they could show me ?

Suggestions where to go from here welcome!

Cheers
Simmey