Update to existing robot - follow up

Hi  I recently posted an order and engaged developer no 2. All the text files were forwarded and I thought we had agreed on price and delivery. However I have noticed that all the communication history has dropped off. This is probably an error on my part as I have not used this service before. Anyway would the developer who I have engage perhaps pick up this communication and let me know the status confirming that you intend to complete the order. Thanking you in advance. This was the original message. "I have an existing robot which I obtained many years ago and used with some success. I recently tried to use it again but it would not operate as it was incompatible with the latest update to MT4. Its likely a very simple fix but I am not a coder so can't do it myself. I would really like to have this made able to be used once again as it was my favourite robot and profitable for a couple of years before there was an unusually low volatility period during which it became unprofitable. I will send the software through securely once I have an indication from an interested party. I use Mt 4 not 5 however if the version 5 will run on MT 4 then it could be created in the version 5 if that makes it easier."