Issues running brew update and brew doctor

gistfile1.txt

#brew update

Error: no such file to load -- tempfile
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/bug-fixing-checklist
/usr/local/Library/Homebrew/extend/pathname.rb:108:in `require'
/usr/local/Library/Homebrew/extend/pathname.rb:108:in `atomic_write'
/usr/local/Library/Homebrew/cmd/untap.rb:41:in `unlink_tap_formula'
/usr/local/Library/Homebrew/cmd/update.rb:32:in `update'
/usr/local/bin/brew:83:in `send'
/usr/local/bin/brew:83

#brew doctor

Error: no such file to load -- set
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/bug-fixing-checklist
/usr/local/Library/Homebrew/cmd/doctor.rb:1:in `require'
/usr/local/Library/Homebrew/cmd/doctor.rb:1
/usr/local/bin/brew:47:in `require'
/usr/local/bin/brew:47:in `require?'
/usr/local/bin/brew:82

#brew install -v $FORMULA

Error: no such file to load -- find
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/bug-fixing-checklist
/usr/local/Library/Homebrew/keg_fix_install_names.rb:1:in `require'
/usr/local/Library/Homebrew/keg_fix_install_names.rb:1
/usr/local/Library/Homebrew/keg.rb:191:in `require'
/usr/local/Library/Homebrew/keg.rb:191
/usr/local/Library/Homebrew/formula_installer.rb:3:in `require'
/usr/local/Library/Homebrew/formula_installer.rb:3
/usr/local/Library/Homebrew/cmd/install.rb:1:in `require'
/usr/local/Library/Homebrew/cmd/install.rb:1
/usr/local/bin/brew:47:in `require'
/usr/local/bin/brew:47:in `require?'
/usr/local/bin/brew:82

#brew --config

HOMEBREW_VERSION: 0.9.2
HEAD: 7dadb80d1336649e189c5f268eaaf89d410601a8
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: dual-core 64-bit penryn
OS X: 10.6.8-x86_64
Xcode: 3.2.6
GCC-4.0: build 5494
GCC-4.2: build 5666
LLVM: build 2335
Clang: 1.7 build 77
MacPorts or Fink? false
X11: 2.3.6 @ /usr/X11
System Ruby: 1.8.7-249
Which Perl:   /usr/bin/perl
Which Python: /Library/Frameworks/Python.framework/Versions/2.7/bin/python => /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Which Ruby:   /usr/bin/ruby => /Users/nathan/.rvm/rubies/ruby-1.8.7-p352/bin/ruby