Multilevel Categorization and SLA response profiles.

Greeting CRM experts.

First of all im new in CRM.

Setting up Solution Manager 7.1 based on CRM 7.0 We using same UI framework.

Question: I want create Category Schema for Incidents and want SLA calculate

"TodoBy" and "First reaction" based on prio + caterories chosen from my new Cat. Schema.

Can any one provie me step-by-step guide or at least say where i should start search for???

Regards

Dan