Paste Data From Userform Back Into Spreadsheet

I have a "txtQuoteNo" box used in my userform "FrmQuotation", and this is recorded in column A of my Central Data spreadsheet (with a fair slug of other data from the userform).

I can currently recall the data into the userform from the spreadsheet using the QuoteNo, but when I need to resubmit it back to the spreadsheet, I can't see why the following code posts this new data onto a new line rather than the blank cells in the corresponding row of txtQuoteNo and column A (if you see what I mean...)

Set wb = Workbooks.Open("M:Central Taxi Data.xlsx")
With Sheets("Data").Range("A:A")
Set cell = .Find(myVal, LookIn:=xlValues)
rw = cell.Row
End With

RowCount = Worksheets("Data").Range("A" & rw).CurrentRegion.Rows.Count

[Code] .......