Help with backtesting!!

I have a stock trading strategy that I want to backtest but I cannot find any free resources out there that can backtest my strategy. And the one's that I can find, like Seer, are for PROGRAMMING strategies and then backtesting them. I don't need to program anything, the rules are purely mechanical, not automated. Basically I'm looking for a website or piece of software that can do this:

Take an unlimited number of symbols and based on their historical prices, test my strategy against the entry and exit signals my strategy generates. So, for example, say XYZ company was trading at $15 last year (2008) on this same date (Nov 25). If I bought it at $15 and held it to whenever my strategy said to sell (or buy if I was short selling) what would have been my return if I had actually made the trade? This needs to be done over a handful of stocks my strategy has generated. Does anyone know of any good backtesting websites/software that is free?

*NOTE: I'm not looking for backtesting software provided by a broker, such as Strategy Runner from TD Ameritrade. I want a stand-alone backtester.*

If its ''purely mechanical'' surely its highly likely that it could be automated?

'*NOTE: I'm not looking for backtesting software provided by a broker, such as Strategy Runner from TD Ameritrade. I want a stand-alone backtester.*''

What's the difference?

The difference is that in order to use Strategy Runner from TD Ameritrade you have actually use TD Ameritrade as your broker, which I don't. That's why I don't want a broker backtesting software. No offense, but your post doesn't really help me find a backtest software/website.

Sorry I don't know of one, I do my back testing by hand. I just wondered why you specifically didn't want it to be provided by a broker.

Yeah, I wouldn't mind using Strategy Runner if I was a TD Ameritrade client, but I use TradeKing and they don't have any sort of backtesting application. I guess I'll just have to pay someone who knows how to program to automate it for me in Seer and then backtest it that way. UGH!!!!