Passing data from a sub-report to a report

[VeeFour]

I have 2 sub-reports each with a running total and a main report which hosts them both. My problem arises when I try to show the running totals from the sub-report on the main report which looks something like this:

1st total 10 this should display 45 in the main report Page Header
2nd total 10 this should display 37 in the main report Page header

____________
a 10
b 15
c 20 <----Sub-Report 1

1st total 45
____________
d 10
e 12
f 15 <----Sub-Report 2

2nd total 37
____________

I also have a problem passing text values from the sub-report to the main report which will usually display a number instead of the intended text.

Any pointers would be greatly appreciated.