help

[75volvo at comcast.net]

I entered 6 months worth of checkbook transactions into the 1.something version of Gnucash.  Then upgraded to the current version.

I made some (I believe) errors in the choices as to account setup.  All of the transactions are accurate as far as amounts goes but they ended up with meanings that I don't get.  For instance.  I ended up an account called opening balances.  This is alright I suppose but all of the deposits that have landed there show up as a withdrawal and are not in the check book.
So instead of the expected values balancing I just have negative values.

What I would like to do is somehow (without re-entering everything) sort of start over.  Maybe export the whole thing to a spreadsheet and after simplifying everything import it all back and then assign values that work.
I have also now an account called accounts receivable.  This is a good thing to have once I send out some bills but a bunch of bank deposits have landed there and I can't seem to edit them in a way that changes them to straight income.  I tried paying them but I could not find that they showed up somewhere else as a positive value.
I want to run my business from this software and I believe once I get past the original setup it will work.