The only part of SPARK that uses Irrlicht are SPK::IRR::Renderers, and they work with the latest SVN version of Irrlicht. There is still on or two graphic bugs related to transparency, but at least for one it is an Irrlicht bug.
It should be "Checkout" not "import". Really look some video on youtube about tortoise, if you don't do branching or mergin using tortoise is really easy. (and anyway SourceForge credentials can be accessed from your sourceforge profile ) take the time you need to learn basics of SVN and try to get as much as possible of GIT, you'll need it as software developer (even if you work alone)
Thanks for the advice REDDemon, will follow up on that. I had downloaded a snapshot before but there was a function that wasn't linking from a dll that was included, and had the function, so hope this time it will work!