SynLook is already there in almost all faiy.lua functions, but nothing was changed on server side.
When I compile the clean CO client from this forum, the fairy level is incorrect (becomes 0).
When I use the precompiled CO executables, the fairy level is correctly shown.
The only thing which I changed was the client executable in the system folder.
Update I found the fix, the sourcecode was wrong after all:
//nLevel= pGrid.GetAttr(ITEMATTR_VAL_STR) + pGrid.GetAttr(ITEMATTR_VAL_AGI) + pGrid.GetAttr(ITEMATTR_VAL_DEX) + pGrid.GetAttr(ITEMATTR_VAL_CON) + pGrid.GetAttr(ITEMATTR_VAL_STA);
int nLevel= pGrid.GetInstAttr(ITEMATTR_VAL_STR) + pGrid.GetInstAttr(ITEMATTR_VAL_AGI) + pGrid.GetInstAttr(ITEMATTR_VAL_DEX) + pGrid.GetInstAttr(ITEMATTR_VAL_CON) + pGrid.GetInstAttr(ITEMATTR_VAL_STA);