TP-Link TL-WR1043ND v1.8 : compatibility break ?

In march 2016, all was OK for me about installing PirateBox v1.0(.7) package on a TP-Link TL-WR1043ND v1.8
( [forum.piratebox.cc] ).

However, as of november 2017 (I waited several months after the death of my USB key), I fail to make it run again with a new USB key and the latest PirateBox Package 'v1.1' (that is certainly v1.1.3).
Description of the issue : no WIFI SSID on air, it seems that the PirateBox installation fail to start (when connected with telnet, the command line is still 'openWRT' instead of 'piratebox'). I don't know how to get more useful infos about this issue.

I have just tried with PirateBox v1.0(.7) package (after reflashing OpenWRT on the TP-Link) and the installation worked !, some informations :

cat /etc/pbx_custom_image
PBX_auto_Image_2.4

root@piratebox:~# cat /etc/openwrt_release
DISTRIB_ID="OpenWrt_backports"
DISTRIB_RELEASE="12.09.2"
DISTRIB_REVISION="r42647"
DISTRIB_CODENAME="attitude_adjustment"
DISTRIB_TARGET="ar71xx/generic"
DISTRIB_DESCRIPTION="OpenWrt_backports Attitude Adjustment 12.09.2"
DISTRIB_BACKPORT="V0.3-MaStr"

root@piratebox:~# cat /opt/piratebox/version
piratebox-ws_1.0.7

1. I will now try to find where the issue happen, ideas (howtos) would be welcome.
2. Is it possible to dowload the old ZIP packages of PirateBox somewhere ? ( [piratebox.cc] ).