Hi Graham,
The reason why you are seeing the incorrect time-stamp for tick data is most likely because you are using the incorrect “time stamp” token.
{BarBeginTime} is specifically used to output the begin time of the candle, and what you are after is the {Timestamp} of the tick.
Please consult the help topic here for further details:
http://www.tickstory.com/help/tickstorylite/special_tokens_for_custom_form.htm
If you would like us to have a pre-defined value for ForexTester, please let us know the format and we can include it in the next release.
Regards.