<DOCUMENT>
<TYPE>EX-4.5
<SEQUENCE>6
<FILENAME>ex4-5.txt
<DESCRIPTION>SCHEDULE IDENTIFYING MATERIAL DETAILS OF WARRANTS
<TEXT>

<PAGE>   1

                                                                   EXHIBIT 4.5

             SCHEDULE OF WARRANTS ISSUED (SB SERIES)


<TABLE>
<CAPTION>
DATE OF          NAME OF WARRANT RECIPIENT          WARRANT         NUMBER OF           EXERCISE PRICE
ISSUANCE                                            NO.             SHARES OF           EXPIRES
                                                                    COMMON STOCK
----------------- -------------------------------- --------------- ----------------- ------------------------
<S>               <C>                              <C>             <C>               <C>
4/17/2000         Sand Brothers & Co., Ltd.        SB-1            125,000           Exercise Price:  $1.625
                                                                                     Expires 4/17/2005
4/17/2000         Lloyd H. Saunders                SB-2            75,000            Exercise Price:  $1.625
                                                                                     Expires 4/17/2005
4/17/2000         James Kellog                     SB-3            50,000            Exercise Price:  $1.625
                                                                                     Expires 4/17/2005
</TABLE>


</TEXT>
</DOCUMENT>