my advice is start disabling GIF support in HFS sources, and try to compile that way
you will be able to play with it and try to make your own hacks
to install JVCL you should add C:\program files\borland\delphi6\bin to the PATH enviroment variable.
also doing this, i get a problem with it: it says it can't compile a package, and say to try compiling it manually. it works this way.