Help to find MIBs

What I found:
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPIgmp(1)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPWeb(2)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPAgingOut(4)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPBpi2CertStatus(5)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPWebSwitch(6)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPWebAccessLvlPassword(7)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPFtpSwitch(8)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmRemoteWebAccess(10)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPDsPlan(11)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPConsoleEnablePassword(12)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPMulticastPromiscuousMode(13)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmDocsis1xQpskBurstPreamble(14)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPInternalInterface(15)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPWebAccessLvlUsername(16)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPResetNow(17)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).cmAPFactoryReset(18)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).dpxCmMib(77).dpxCmMibObjects(1).cmAPInfo(3).saCmArpRateLimit(19)

.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).saVoip(78).saCmMta(1).saCmMtaCliAccess(1001).saCmMtaCliAccessType(1)
.iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).sa(1429).saVoip(78).saCmMta(1).saCmMtaCliAccess(1001).saCmMtaCliAccessNoActivityTimeout(12)

nothing for:
.1.3.6.1.4.1.1429.77.1.7.5.0 = INTEGER: 1
.1.3.6.1.4.1.1429.77.1.7.6.0

there is a copyright for MIBs (reason you don't find them)
here are the MIB Informations from sa:
-- Copyright 2006 Scientific Atlanta, A Cisco Company
-- All Rights Reserved
-- No portions of this material may be reproduced in any
-- form without the written permission of:
-- Scientific Atlanta, A Cisco Company
-- 5030 Sugarloaf Pkwy
-- Lawrenceville, Georgia 30044

Good luck

maybe in DPXCM-MIB.

You must be mistaken, they are part of that collection

$ snmptranslate .1.3.6.1.4.1.1429.77.1.3.1.0 \
> .1.3.6.1.4.1.1429.77.1.3.2.0 \
> .1.3.6.1.4.1.1429.77.1.3.4.0 \
> .1.3.6.1.4.1.1429.77.1.3.5.0 \
> .1.3.6.1.4.1.1429.77.1.3.6.0 \
> .1.3.6.1.4.1.1429.77.1.3.7.0 \
> .1.3.6.1.4.1.1429.77.1.3.8.0 \
> .1.3.6.1.4.1.1429.77.1.3.9.0 \
> .1.3.6.1.4.1.1429.77.1.3.10.0 \
> .1.3.6.1.4.1.1429.77.1.3.11.0 \
> .1.3.6.1.4.1.1429.77.1.3.12.0 \
> .1.3.6.1.4.1.1429.77.1.3.13.0 \
> .1.3.6.1.4.1.1429.77.1.3.14.0 \
> .1.3.6.1.4.1.1429.77.1.3.15.0 \
> .1.3.6.1.4.1.1429.77.1.3.16.0 \
> .1.3.6.1.4.1.1429.77.1.3.17.0 \
> .1.3.6.1.4.1.1429.77.1.3.18.0 \
> .1.3.6.1.4.1.1429.77.1.3.19.0 \
> .1.3.6.1.4.1.1429.77.1.7.5.0 \
> .1.3.6.1.4.1.1429.77.1.7.6.0 \
> .1.3.6.1.4.1.1429.78.1.1001.1.0 \
> .1.3.6.1.4.1.1429.78.1.1001.12.0 \
>
SA-CM-MIB::cmAPIgmp.0
SA-CM-MIB::cmAPWeb.0
SA-CM-MIB::cmAPAgingOut.0
SA-CM-MIB::cmAPBpi2CertStatus.0
SA-CM-MIB::cmAPWebSwitch.0
SA-CM-MIB::cmAPWebAccessLvlPassword.0
SA-CM-MIB::cmAPFtpSwitch.0
SA-CM-MIB::cmRGresetdefault.0
SA-CM-MIB::cmRemoteWebAccess.0
SA-CM-MIB::cmAPDsPlan.0
SA-CM-MIB::cmAPConsoleEnablePassword.0
SA-CM-MIB::cmAPMulticastPromiscuousMode.0
SA-CM-MIB::cmDocsis1xQpskBurstPreamble.0
SA-CM-MIB::cmAPInternalInterface.0
SA-CM-MIB::cmAPWebAccessLvlUsername.0
SA-CM-MIB::cmAPResetNow.0
SA-CM-MIB::cmAPFactoryReset.0
SA-CM-MIB::saCmArpRateLimit.0
SA-CM-MIB::saCmWebAccessAdvancedType.0
SA-CM-MIB::saCmWebAccessAdvancedUsername.0
SA-CM-MTA-MIB::saCmMtaCliAccessType.0
SA-CM-MTA-MIB::saCmMtaCliAccessNoActivityTimeout.0