Click on this link to see the publication PDF A Guide to Representing Yourself in Court

Look to page 38 - Immigration Tribunals
(Although there's lots of other very useful chapters)

Look here also - Update to cuts/changes to legal aid for immigration advice:

Here's a useful UKBA Guidance for Caseworkers called - Reconsiderations

Please do bear in mind that formal Appeals are a legal process.
Reconsiderations (unless part of the formal appeals process) are NOT. The UKBA are under no legal obligation to reconsider any refusal.