Shopping cart downloads - iif

Couple of issues...I am using Quickbooks 2005, and I am downloading sales info as Sales Receipts into a iif file from a shopping cart provided by SecurenetShop LLC. Products are all downloading properly.When downloading, shipping shows up on the invoice in the amount column, but for some reason, it is not included in the general ledger income account of "Shipping". Also, Shipping is always marked as non-taxable on the Sales Receipt screen after the import. I have set the item as taxable in QB and in the shopping cart settings. It just seems to fall through the cracks. This happens even though the Shipping item in Quickbooks has been assigned an income account (both the main item and the sub-item that is labeled FedEx or UPS). Sales taxes are also causing issues in that the liability does not post to the general ledger. It does show up on the invoice created by the shopping cart and the Quickbooks Sales Receipt, however. The Sales Tax Item name appears in the "tax" field on the Sales Receipt, but the rate is blank. Once I change the field to another sales tax item, I can change it back and get the correct answer and have it posted to the g/l. For customers that are subject to tax are also marked aas non-taxable even though tax is computed.Bottom line is that several manual steps have to be performed after the download to get the proper accounting treatment.Thanks for your help.