You can't just jailbreak and expect everything to be on cydia and installer ..
You have to Add sources to cydia.. I wouldnt even bother with Installer its too much of a hassle. When you add sources it adds packages and themes and everything you can think of.
there is a ton of customizable stuff you can do with cydia.
Here are some sources for cydia. to get them open cydia go to manage click sources. Then click Edit then add and type these in exactly as they are.. some dont work so i put WORKS or DOWN next to them.
WORKS BigBoss :
http://apt.bigboss.us.com/repofiles/cydia/
DOWN iPhoneStuff:
http://iphonestuff.ru/ (DOWN)
DOWN ModMyiFone:
http://modmyifone.com/repo/ (DOWN)
WORKS Ste:
http://repo.smxy.org/cydia/apt/
WORKS Telesphoreo Tangelo:
http://apt.saurik.com/
WORKS ZodTTD:
http://www.zodttd.com/repo/cydia/ ( LOT'S OF TRAFFIC, BUG SOLVED WITH CYDIA UPDATE)
DOWN Andy Dam:
http://66.84.47.91/apt/
WORKS Intelliborn:
http://intelliborn.com/cydia/
WORKS iSpazio:
http://ispaziorepo.com/cydia/apt/
WORKS Urban Fanatics:
http://urbanfanatics.com/cydia/
WORKS Free Coder:
http://iphone.freecoder.org/apt/
WORKS iFonetec:
http://app.ifonetec.com/cydia/
WORKS Hack&Dev.org:
http://iphone.hackndev.org/apt/
DOWN Tmgrepo:
ftp://tmgrepo_docspages_com:9866058 (<-Underscores; not spaces)
DOWN iModZone Mirror:
http://jmiz9000.extroverthost.com/
WORKS WeHo.ru
http://weho.ru/iphone/
DOWN SaladSoft (Nick Lee)
http://nicklee.com/cydiasource/
DOWN RichCreations iPhone Software
http://www.richcreations.com/iphone/apt... (it cuts off here)
WORKS Steffwiz:
http://steffwiz.webs.com/iPhone/Repo
WORKS iClarified:
http://cydia.iclarified.com
WORKS Iaccess:
http://iaccess.com/apt
DOWN WeiPhone:
http://app.weiphone.com/cydia/
DOWN iPhoneCake:
http://cake.mapleidea.com/cydia/
WORKS Hackulos:
http://cydia.hackulo.us/