Run that command as root l, like type su in first to obtain root then use flash image to flash the recovery. Flash image has to be ran by a root user so you must type su beforehand.
Ohh ok I did that and this is what I got but when I turn my phone off and use power vol down and vol up its boots to a black screen...
$ export PATH=/data/local/bin:$PATH
$ su
# cal/tmp/flash_image recovery /data/local/tmp/recovery.img
mtd: successfully wrote block at 1950c00000000
mtd: successfully wrote block at 1950c00040000
mtd: successfully wrote block at 1950c00080000
mtd: successfully wrote block at 1950c000c0000
mtd: successfully wrote block at 1950c00100000
mtd: successfully wrote block at 1950c00140000
mtd: successfully wrote block at 1950c00180000
mtd: successfully wrote block at 1950c001c0000
mtd: successfully wrote block at 1950c00200000
mtd: successfully wrote block at 1950c00240000
mtd: successfully wrote block at 1950c00280000
mtd: successfully wrote block at 1950c002c0000
mtd: successfully wrote block at 1950c00300000
mtd: successfully wrote block at 1950c00340000
mtd: successfully wrote block at 1950c00380000
mtd: successfully wrote block at 1950c003c0000
mtd: successfully wrote block at 1950c00400000
mtd: successfully wrote block at 1950c00440000
mtd: successfully wrote block at 1950c00480000
mtd: successfully wrote block at 1950c004c0000
wrote recovery partition
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