My search on price gives wrong results

[MUtester]

I have installed the Quick Price Search module with multi-currency support but there are three problems that I hope someone can help me with (btw. my shop is bilingual and has more than 1 currency):

1. I get results that are just outside the defined ranges
2. all results are double, I imagine it has something to do with the database having one product for each language? How to solve this?
3. the modules readme says that you can have the range adjust to the value of the currency. Changing the "1" to "" in the following code is supposed to do so but it does not. The only change is the symbol of the currency. Any ideas?

//s_mack: Hint:  If you want the values converted as well then change the "1" parameter to blank ('') in the nine instances below. This will then use the currency exchange rates to change your defined values as well (so $5 becomes something like 2GBP)
	$content .= '<a href="' . zen_href_link('advanced_search_result&pfrom=' . SP_RANGE_1_F . '&pto=' . SP_RANGE_1_T) . '">' . $currencies->format(SP_RANGE_1_F, '', '', 1) . " - " . $currencies->format(SP_RANGE_1_T, '', '', 1) . '</a><br />';
	$content .= '<a href="' . zen_href_link('advanced_search_result&pfrom=' . SP_RANGE_2_F . '&pto=' . SP_RANGE_2_T) . '">' . $currencies->format(SP_RANGE_2_F, '', '', 1) . " - " . $currencies->format(SP_RANGE_2_T, '', '', 1) . '</a><br />';
	$content .= '<a href="' . zen_href_link('advanced_search_result&pfrom=' . SP_RANGE_3_F . '&pto=' . SP_RANGE_3_T) . '">' . $currencies->format(SP_RANGE_3_F, '', '', 1) . " - " . $currencies->format(SP_RANGE_3_T, '', '', 1) . '</a><br />';
	$content .= '<a href="' . zen_href_link('advanced_search_result&pfrom=' . SP_RANGE_4_F . '&pto=' . SP_RANGE_4_T) . '">' . $currencies->format(SP_RANGE_4_F, '', '', 1) . " - " . $currencies->format(SP_RANGE_4_T, '', '', 1) . '</a><br />';
	$content .= '<a href="' . zen_href_link('advanced_search_result&pfrom=' . SP_RANGE_5_F . '&pto=' . SP_RANGE_5_T) . '">' . $currencies->format(SP_RANGE_5_F, '', '', 1) . " +" . '</a><br />';
	$content .= '</div>';

Unfortunately I am testing this on a test server and can not give access to it. Anyone that knows how to solve any of these three issues? I would really appreciate the help...