HIERARCHY HELP! PLEASE?

I have an Interesting situation that I'm hoping some of you experts can help me with basically I have the following hierarchy:

Net Profit
.....Gross Profit
..........Revenue
..........Direct Costs
.....Indirect Expense


Now, I have another hierarchy - separate from the above - that I need to assimilate to the hierarchy above - Example:

Expenses
.....Node a
..........Child a (Indirect Expense Type)
.....Child b (Direct Cost type)
Net Sales Adjustments
.....Child a (Revenue type)
.....Child b (Revenue type)

Depending on the type, the top most node needs to be assigned to the appropriate node in the initial hierarcy, like this:

Net Profit
....Gross Profit
........Revenue
................Net Sales Adjustments
....................Child a (Revenue type)
....................Child b (Revenue type)
........Direct Costs
...........Expenses
.................Child b (Direct Cost type)
........Indirect Expense
............Expenses
.................Node a
.....................Child a (Indirect Expense Type)

Now, I've been able to figure out how to assign the top most node and leafs if all the children have the same type (using the expan stored proc listed in the books online), but my question is on this portion:

Expenses
.....Node a
...........Child a (Indirect Expense Type)
.....Child b (Direct Cost type)

Basically, the answer is to work backwards - if a child has a type that is different than the other children, a copy of the hierarch (up to the child) needs to be made and assigned to the appropriate initial node.

I've tried modifying the expand stored proc to give me the lineage of the child and see if there's a way I can copy the node and place it appropriately - I'm brainfried at this point, and I'm hoping that someone outthere can point me in the right direction.

Thanks in advance for your time