Module does not work with UC tax rules or VAT

Ubercart stores price information to multiple decimal places, 5 I believe. This is so when any percentage based price modifier is used, tax rules, discounts etc the price is only rounded once at the checkout process rather than rounding it to two decimal places every time a percentage based price modifier is applied.

The MSP module expects prices only to be to 2 decimal places. Under normal circumstance this is ok, you enter your product price to 2 dp and it is stored to 5 dp but the trailing 3 digits are all zeros. MSP ignore the trailing zeros.

As soon as you use a percentage based price modifier which gives a price with digits in all 5 decimal places ie product price £9.86 then add a tax rule of 17.5% the price is stored as 11.5855, When you try and pass £11.5855 to MSP he throws an error.

Attached is a patch for uc_multisafepay which rounds the price to 2 decimal places before passing it to MSP.