The basic 5 steps of reversal processing are
1. First developer
2. Bleach (non-halogenating)
3. Re-exposure *
3. Second developer (may be a fogging developer)
* Re-exposure is not required if a fogging developer is used.
There are also washes and a clearing bath but these are the basic steps.
Note that a rehalogenizing bleach is not used as it defeats the purpose. You do not want the image procuced by the first developer when bleached to be sensitive to light.
For specific information go to the following site. Be sure to click on the last line "REVERSAL PROCESSING" for full information. http://www.ilfordphoto.com/applications/page.asp?n=90