.... from BSTree.h ........
class BSTree{
    public:
        BSTree();
        ~BSTree();
        void insert(double); //Wrapper for insert(BSTreNode*)
        double min();  //Wrapper for min(BSTreeNode*);
    private:
        void insert(BSTreeNode*);
        BSTreeNode* min(BSTreeNode*);
        BSTreeNode* root;
};
...................................................

....from BSTree.cpp ......
BSTree::BSTree() { root = 0; }

void BSTree::insert(BSTreeNode* n){
     BSTreeNode* t = root; //Tree cursor
     BSTreeNode* p = 0; //Keep track of parent node 
     std::cout<<n->getKey()<<" "<<root->getKey();    ////THIS IS WHERE I GET SOME INSANELY LARGE DOUBLE FOR root's getkey.
     while(t!=0){ //As long as t points to a node.
         p = t;
         if(n->getKey() < p->getKey())//Traverse Left Branch
             {t = t->getLeft();}
         else{t = t->getRight(); } //Traverse Right Branch
     }
     std::cout<<"wassabi!";
     n->setParent(p); //Set n's parent
     if(p == 0){
          root = n;
          return;
     }
     if(n->getKey() < p->getKey()) //Set p's child appropriately
         p->setLeft(n);
     else{ p->setRight(n); }
}