bootlader-jb topic

hello I have a problem with my Tab A700
I look cwm.recovrery.jb.img
but I find nothing
al has instead I find stock recovrery ( Image Version:
Acer_AV051_A701_RV05RC08_EMEA_DE )
AC load the cwm but imposible to install a rom ca me but every time I get an error partition.size = [__ PROP_UNDEFINED__ ] Installation aborted .
I find no consistent Roma help me please I go through a translator so desolated