Hi! We're trying to start our 6mth old daughter...

Hi! We're trying to start our 6mth old daughter on solids and seem to be having trouble getting her to eat anything?? I've started by trying her on fruit cereal about 1hr after her morning bottle ... she'll have about 2 mouthfuls and is then completely not interested. I then try her on vegies about 1 hr after her 5pm bottle and she does the same thing. I'm thinking perhaps she may be having too much milk & is too full for food ... maybe I should try offering food before her bottles??? I'm just worried that she should be eating much more than this, and she should probably even be having lunch aswell as rusks & things to chew on, but I'm having enough trouble just tying to get her to have anything for brekky & tea. What are your 6mth old feeding routines & what quantities are they having (both bottle and food). Also, are your little ones rolling yet? She's also not even attempting to roll over yet, which from memory they should be doing around 4-5 months?? Any suggestions would be great! Thanks.