Go4Expert - Trying to make a linked list in C please help

I've been wrestling with this for some hours and I'm wondering if anyone can see what's wrong with it.

This is a linked list meaning the last element should always point to NULL

Code:

int main(void) {

        srand ( time(NULL) );

        BOOK books;                                // Both of these should be stored as pointers and malloc should be used to make things easier for myself but when I switch it and make the necessary changes, the program still crashes

        MEMBER club;

        club.next = NULL;

        books.ISBN[0] = 'a';

        books.next = &books;

..........

Code:

if (userInput == 1) { // Let's add a new member!

                                char fName[32];

                                char mInit;

                                char lName[32];

                                char phoneNum[13];

                                printf("Please enter the user's first name\n");

                                getUserInputString(32, fName);  //this function works for sure

                                printf("Please enter the user's middle inital\n");

                                getUserInputString(1, &mInit);

                                printf("Please enter the user's last name\n");

                                getUserInputString(32, lName);

                                printf("Please enter the user's phone number\n");

                                getUserInputString(13, phoneNum);

                                memberInsert(&club, fName, mInit, lName, phoneNum);

Code:

MEMBER* memberInsert(MEMBER* memberStart, char fname[], char mInit, char lname[], char phonenum[]) {

        MEMBER *newMember = (MEMBER*) malloc(sizeof(MEMBER));

        strcpy((newMember->name).firstname, fname);

        strcpy(newMember->name.lastname, lname);

        newMember->name.intial = mInit;

        strcpy(newMember->telephone, phonenum);

        return insertMember(memberStart, newMember);

}

Code:

MEMBER* insertMember(MEMBER *memberStart, MEMBER *newMember) {

        MEMBER* currentMem = memberStart;

        if ((memberStart->telephone)[0] == 'a') {

                memberStart = newMember;

                return memberStart;

        }

        while (currentMem->next != NULL)

                currentMem = currentMem->next;

        currentMem->next = newMember;

        return memberStart;



}