Yes it can, but Despite what I'm sure you've heard "ahh cydia sucks" "it crashes" *runs away from cydia*
cydia ismuch more stable than installer
It Also has more applications and styles than installer.
If you still want installer it's actually quite easy, google around for a download of "installer.app 4.0b" and eventually you'll find it. then just ssh it to your applications folder like you would anything else.