If a party has stipulated to a permanent spousal support amount and then wants to figure out guideline child support, where does the spousal support amount actually paid get entered in the Dissomaster? For example, if he pays $2500/month for spousal, would I put $2500 for wife on the line "other taxable income" and $2500 on Husband's line "Other gdl. amount?" Or do I go into proposed tactic 8(d) and put "nondeductible" $2500 amount there? Or am I entirely offbase? What other settings need to be changed?

Just adjust both incomes and use that for the initial entry. Since he is paying it to you then you get plus $30,000 on your starting income and for his it would be minus $30,000. Spousal support is taxable to you and deductable to him so that way it shows a accurate picture of how much "gross" you both make.