Récupérer un flux ajax

Bonjour à tous
j'essaye de récupérer un flux ajax contenant des cours de bouses et les # indicateurs (rsi, bollinger....)
grâce ce à un sniffer http je connait les paramètres mais je n'arrive pas à les utiliser correctement par httprequête (équivalent windev de file_get_contents ou httprequest )

<Résultat> = HTTPRequête(<URL à contacter> [, <Agent utilisateur> [, <En-tête HTTP supplémentaire> [, <Message à envoyer> [, <Type du message> [, <Nom User> [, <Mot de passe>]]]]]])

le sniifer ne donne ceci :

HEADER

GET /common/refresher_new/refresher_v13.2.php?refresher_version=v1.5.7&session_uniq_id=6e366f7c126325c12abbf0e0d6369195&sideblock_recent_quotes=1&sideblock_quotes_exists=1"es_bar_exists=0&economicCalendar_exists=0&smlID=106000&sideblock_quotes_selected=QBS_2"es_bar_selected=1&PortfolioSideBoxTime=1355802836&RQSideBoxTime=1355802836&MyPortfolioTime=1355802836 HTTP/1.1
Host: [url]www.forexpros.fr[/url]
Connection: keep-alive
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11
Accept: text/plain, */*; q=0.01
Referer: [url]https://fr.investing.com/currencies/eur-usd-advanced-chart[/url]
Accept-Encoding: gzip,deflate,sdch
Accept-Language: fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Cookie: PHPSESSID=cn0l36n6ds74iqlskuiib7mer6; fpros_popup=1356006496; side_block_user=a%3A2%3A%7Bs%3A10%3A%22stack_size%22%3Ba%3A1%3A%7Bs%3A11%3A%22last_quotes%22%3Bi%3A8%3B%7Ds%3A6%3A%22stacks%22%3Ba%3A1%3A%7Bs%3A11%3A%22last_quotes%22%3Ba%3A7%3A%7Bi%3A0%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A4%3A%228826%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A0%3A%22%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A27%3A%22%2Findices%2Fgermany-30-futures%22%3B%7Di%3A1%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A3%3A%22636%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A0%3A%22%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A40%3A%22%2Fequities%2Faustralia---nz-banking-grp-ltd%22%3B%7Di%3A2%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A2%3A%2248%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A30%3A%22Dollar+australien+Franc+suisse%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A19%3A%22%2Fcurrencies%2Faud-chf%22%3B%7Di%3A3%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A5%3A%2219430%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A0%3A%22%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A29%3A%22%2Fequities%2Fgalatasaray-sportif%22%3B%7Di%3A4%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A5%3A%2219402%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A0%3A%22%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A28%3A%22%2Fequities%2Ffenerbahce-sportif%22%3B%7Di%3A5%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A5%3A%2219318%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A0%3A%22%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A30%3A%22%2Fequities%2Fbesiktas-futbol-yat.%22%3B%7Di%3A6%3Ba%3A3%3A%7Bs%3A7%3A%22pair_ID%22%3Bs%3A1%3A%221%22%3Bs%3A10%3A%22pair_title%22%3Bs%3A22%3A%22Euro+Dollar+am%C3%A9ricain%22%3Bs%3A9%3A%22pair_link%22%3Bs%3A19%3A%22%2Fcurrencies%2Feur-usd%22%3B%7D%7D%7D%7D; __utma=147962656.1489460251.1351679208.1355912557.1355977709.74; __utmb=147962656.6.10.1355977709; __utmc=147962656; __utmz=147962656.1354707480.31.2.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=(not%20provided)

QQ'un connait la bonne syntaxe ?
merci de votre aide