The following is the contents of the I/B/E/S Detail History (with Actuals)

Variable Name  Type    Variable Label
     ANALYS    Num     Analyst Code
     BROKER    Num     Broker Code
     CNAME     Char    Company Name
     CURRFL    Char    Currency Flag (Estimate Level)
     CUSIP     Char    CUSIP/SEDOL
     ESTDATX   Char    Estimate Date (Original IBES Format)
     ESTDATS   Num     Estimate Date (SAS Format)
     FPEDATX   Char    Forecast Period End Date (Original IBES Format)
     FPEDATS   Num     Forecast Period End Date (SAS Format)
     FPI       Char    Forecast Period Indicator
     MEASURE   Char    Data Type Indicator (e.g., EPS, CPS, etc.)
     OFTIC     Char    Official Ticker (Exchange Ticker Symbol)
     PDF       Char    Primary/Diluted Flag (Estimate Level)
     REPDATS   Num     Report Date (Actual Value), SAS Format

If you only need October of the year, you can use month(estdats) = 10 as condition to keep the observations you want.

You can use the WRDS webpage query to get all the data and run on your computer. It would be a little bit easy. There are sample code you can refer to in following link:
http://wrds.wharton.upenn.edu/cgi-bin/samples.cgi?dataset=ibes&type=sas

Good luck on your research !

各位大侠，如何获得IBES数据库？