I need help with router 1720

[civokruk]

Hi to All
I have an old 1700 router that I am using for training. Yesterday I tried to copy the flash to tftp and from tftp to flash. I did confirm to erase the IOS before installing it again. I was very surprised to see that the same IOS couldn't be restored to the router. Please see below for explanation.
System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory

device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory

device does not contain a valid magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1700 platform with 16384 Kbytes of main memory

rommon 1 >

I followed the steps to set an IP to load from TFTP server however it did not work. I typed reset in rommon 7 and now this the terminal screen looks like this

��G��;��9���#?B0�s��9c�M��
B�;Z�B9������(��!�7���WH�D��;���҈"aBd��+xр����"�� �




I need help to restore the IOS and to have my router up and running again. Any help will be appreciated
Thanks again