Restore the last full backup (see books online - the SQL help file - for the RESTORE syntax)
Restore the 1pm differential
Restore all the log backups since that diff. You didn't say what the schedule is, so can't say how many you will need to restore
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability