You can edit these details by:
Click Options and then click System Settings.
Click System Owner.
Click the Details tab.
Amend Details where relevant:
Default Currency.
VAT No.
VAT Rate.
Address.
Default Invoice Terms.
Company Logo.
Click the Invoices tab.
Amend Details where relevant:
Bank Details.
Payment Terms (text).
Footer.
Download Format.
Include Timesheet Documents when Emailing Invoices.
Total Email attachment size limit when Emailing Invoices (MB).
If this does not have the desired affect, please contact your Customer Success Manager or Account Manager to discuss the possibility of applying custom templates to your database.