Alsie: I guess every baby has his own food preferences. Is it possible that Jerome does not have a sweet tooth? I notice all the foods you have been giving are sweet. Maybe you could try veggies instead. If that doesn't work, then try with porridge or a different kind of cereal, like oats (Healthy Times has a baby version), or leave out cereals altogether and feed mashed potatos instead. My friend with 3 kids, living in France, uses potatoes as a base to puree all sorts of veggies with. It will serve the same function, as potatoes, rice cereal or porridge, Oats are all carbohydrates.
The Infantcare centre uses this cone-like cobalt blue long handled scoop from some FM tin to measure out the cereal, and James can take up to 2 scoops of cereal. I would say 1 scoop of cereal is equivalent to say 1 scoop of Isomil FM (I think the two scoop volumes are the same) or 2 scoops of Enfalac FM. I mix it with roughly the same amount of water, so the cereal is quite thick, and not runny at all. I then add in mashed up hard boiled egg yolk (no egg white as this can cause allergies), potato & brocolli puree / carrot puree / pumpkin puree. I haven't tried fruits yet, as we're coordinating with infantcare to introduce one new food a week, so that we can check for allergies.