I bought an AT89isp from ATmel, Using it for AT89S52, so far so good.
Now I use it for AT89S8253, I got the following results:

1)Initialize target for AT89S8253 >> Ready for AT89S8253
2)Blank Check >> The device is ERASED & writable
3)Erase >> ChipErase finish
4)Write -- "Writing to chip.... Success",
5)Verify --code buffer" Failure xx missmatch byte(s)"
6)Read Chip >> all code & data buffer replace by "FF"

Do anybody face the same problem i did? What should be the possible solutions?

Thanks,