LeadPages to SendReach V2 integration guidance is available at https://leadbrite.zendesk.com/entries/27748974
Please also see http://screencast.com/t/EOKf3Ut6AwV1 (created for an SR User) for further setup guidance if you have an issue with the “Gender” field always showing “Male”.
Integration can be achieved in the current SR. V3. by copying and pasting the SendReach Optin Form HTML Code into the appropriate field in the LeadPages Integration Setup Page. Simply Copy and Paste the Code from the Download link above, replacing XXXXXXXXXXXXX with your 13 character List ID. available at Lists > Your List > Overview > Optin Points > List ID.
If you want more Custom Fields then having created the required Custom Fields copy the HTML directly from Lists > Your List > Overview > Optin Points > Subscribe Form
In Leadpages go to Integrations > SendReach > and set the “Allow Copy and Paste” to “Yes”. You will then find a Field in which to copy and paste your Optin Form HTML Code.