It sounds like you'll be working the two halves separately at this point, so you need to use a second ball of yarn to work the second side. Just start knitting with it and you can weave in the end later.
As for the sequence, they should just continue as if you hadn't separated them, unless there was a decrease involved.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry