Milk is an important part of an infant's diet up until they are at least 1, if not 2+. You are a long way off weaning him off milk yet. Just keep persevering with the bottles if you want to stop bf'ing.
The idea with milk is you gradually build up the solids, but continue to offer the same number of feeds. Solids first, milk straight after. The more solids he takes, the less milk he will want. Eventually you'll find he just doesn't want any milk after eating, in which case you then drop that feed.
At a year old, mine were down to a small bottle for morning and afternoon snack, plus 180ml for bed.
In the meantime, what I did for solids weaning was -
Week 1. Pureed vegetables/fruit for lunch only.
Week 2. Porridge and mashed banana for breakfast. Puree for lunch.
Week 3. Add in potatoes, meat and pasta in to the equation for lunch.
Week 4. 3 meals a day, eating all sorts, chopped finely in the processor rather than liquidised.
If you've left it late enough, your DS will really quickly get the hang of it.
If I were doing it again, I would probably look at baby led weaning instead. I think it makes for less fussier eaters. It means that straight from the start they get used to the shapes, colours and textures you're going to want them to eat later on.