have you tried this method maybe it will work
I have given you 2 ways to try the 2nd is called update 2 please read both methods a choose which maybe right for you
Add BigBoss Repository to Cydia via SSH
Open Cydia, search for OpenSSH and install it on your iDevice.
Download bigboss.list file from here bigboss.list
and jump to step 5.
Alternatively you can use the steps below to create bigboss.list file manually.
Open Notepad in Windows. If you are on Mac, open TextEdit and copy-paste the following code into it:
# do not edit this file to add your own custom sources
# this file is subject to be upgraded as part of a package
# either add your own .list file to /etc/apt/sources.list.d
# or add your entry to the global /etc/apt/sources.list file
Go to File menu, choose Save As... and name the file "bigboss.list" (including quotes)
SSH into your iDevice using WinSCP, CyberDuck or DiskAid, navigate to root->private->etc->apt and place bigboss.list file in sources.list.d directory
Thats it. Reboot your device and you are done!
Update#1: Now you can use iPhone Explorer to put bigboss.list file in sources.list.d directory without SSH.
Update#2: Add ModMyi or BigBoss Repo to Cydia directly from Saurik repo. Read details here. Add ModMyi & BigBoss Source to Cydia Easily (Without SSH) | Jaxov
Update #3: Top Cydia Sources