Civilization IV Complete won’t run

As far as I know, no mod changes with the auto worker pattern. This is mostly because you need to specialize cities, which means that one size does not fit all. You also have to co-ordinate with the terrain you settle on. Workers, and city planning are some of the hardest parts of the game.

Take a look at these guides at civfanatics.

Your basic plan for early game is to have 2 or 3 production cities, with lots of food and hammers, as well as 3-5 commerce cities, with cottages. You don't want cottages in your production cities radius, but you can have a mine in your commerce city, so that you can build things like libraries, banks, or other money or science boosting building.

White circles denote fields on which the population of a city are working, thus generating food/production/trade (coins) resulting from given squares. You can rearrange the population to suit your needs, so if you would prefer more food or extra trade (coins), you can deactivate worker from active (white circle) field and assign him of her to another.

Each non-capital city starts with culture 0, thus only has access to 9 adjacent tiles. After reaching first level of culture (10 points), its borders expand and it gets full access to all tiles that are max. 2 non-diagonal squares away from the city centre. Note that every city always automatically generates resources from square composing the city centre, without assigning any population there (unless riots occur in the city).