On the Yahoo wouxun group there is an excel spreadsheet with the memory map.
http://f1.grp.yahoofs.com/v1/0CWeTQg_gQfM9NVX7nkvidV1nrPxIqtniGiv_Ofl2WwX26O...
It says the band limit data is at offset 0x0970 for 16 bytes.
band_limit_table_type 0x00 0x02 Band_1_receive_low_limit frequency_limit band_limit_table_type 0x02 0x02 Band_1_receive_high_limit frequency_limit band_limit_table_type 0x04 0x02 Band_2_receive_low_limit frequency_limit band_limit_table_type 0x06 0x02 Band_2_receive_high_limit frequency_limit band_limit_table_type 0x08 0x02 Band_1_transmit_low_limit frequency_limit band_limit_table_type 0x0A 0x02 Band_1_transmit_high_limit frequency_limit band_limit_table_type 0x0C 0x02 Band_2_transmit_low_limit frequency_limit band_limit_table_type 0x0E 0x02 Band_2_transmit_high_limit frequency_limit
The frequency limit values don't appear to be documented there.